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School of Electric & Informative Engineering
时间:2016-10-25 编辑: 浏览:604

Electric & Informative Engineering School of Yunnan University of Nationalities was established in 1981, mainly concentrating on engineering in company with science study. In the past 35 years, especially 10 years, the school insists on intensifying with developing engineering study. With the school slogan and spirit ‘To study the phenomenon to acquire knowledge; to correspond knowledge and action; to uphold science; to depart from the starting line’, staff spare no efforts to serve students, get achievements in subjects’ erection, talents’ cultivation, scientific research, and social service, and deliver more than 4000 graduates to the society who are granted with master, bachelor, associate’s degree, or correspondence diploma. Graduates from this school has scattered among places in Yunnan Province and 24 provinces, autonomous regions, municipalities, most of whom become the backbones of their institutions. This school is one of the schools that owns hugest scale, distinguished specialty trait, and the highest graduate employment rate, and is listed as the ‘Experimental Unit of School Special Region Cultivation’ for high-level university of nationalities establishment.

This school has set one master degree spot for first-level subject (Information & Telecommunication Engineering), one master degree spot for Electric Engineering, six 4-year undergraduate majors of engineering (Electronic Information Engineering, Telecommunication Engineering, Internet Engineering, Electric Engineering and Automation, Automation, and Civil Engineering), and two 4-year undergraduate majors for science department (Physics, and Applied Physics). ‘Electronic Information Engineering’ and ‘Electric Engineering and Automation’ are the characteristic undergraduate major of provincial level and outstanding-engineer-plan major of provincial level; ‘Experiment Center of Electric & Informative Engineering’ and ‘Analog & Emulation Center of Electric Engineering’ is the experiment and teaching demonstration center of provincial level. This school possesses 3 scientific research platforms, such as Key Yunnan-College Laboratory of Wireless Sensor Network Technology, Key Yunnan-College Laboratory of Informative Technology Application to Nationalities’ Culture, Yunnan-College Engineering Research Center of Informatized Processing on Nationalities’ Language and Characters, all of which conduct tens of scientific study projects of state level, provincial level and corporate demand. This school operates with the cultivating strategy of ‘teaching with different levels and cultivating due to personalities’, so that students, after finishing basic courses’ study in Grade 1 and 2, can autonomously choose the targeted major in reference to their personal traits and interests. When graduate, according to the chosen majors, students can be offered with Graduation Certificate and granted with due Bachelor Degree of Engineering or Science. This school highlights teaching with practice, arranges Engineering Drawing & CAD, primary training of electronic technology, comprehensive design for specialty courses as the school-regulated characteristic courses, and set productive internship, graduation internship and graduation design/paper as the significant practice sections. This school has established 30 laboratories for specialties, providing students with superior practice platform. In addition, the school builds internship and training base in Kunming Gigantic Maintenance Equipment Corporation of China Railway Group, Yunnan Construction Investment Holding Group, Huaneng Shilin Photovolt Energy Development Co. Ltd, Sichuan Huadi Information Technology Co. Ltd, Sichuan Faright Education Group, etc. The school encourages students to participate in extracurricular scientific and technic contest and has established Service Association for science and technology and training center for innovation. Students have been granted with state-level or provincial-level rewards in contests such as ‘Challenge Cup’ National Undergraduate Curricular Academic Science and Technology Works by Race, Freescale Cup Intelligent Car Racing, Electronic Design Contest, Mathematical Modeling Contest, etc.

This school possess 58 faculty members, including 9 professors, 16 master-degree tutor, 8 teachers who ever studied overseas, 1 teaching master of Yunnan Province, and 1 reserve talent for leaders of Yunnan academy and technology. Most teachers graduated from famous universities with at least master degree, and 16 teachers own doctorate degree or postdoctoral work experience.

Welcome outstanding students of nationalities to pass the National College Entrance Examination to join in this school and to become one of excellent graduates so as to contribute to national and Yunnan province social, economic construction and to fulfill life value in person.

 

Electronic Information Engineering

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

This major was established in 1998, as the outstanding-engineer-cultivating-plan major of provincial level and experimental unit of provincial-level major development integrated reform.

Cultivation Target: This major is set with two cultivating directions, Embedded Technology and Application, and Signal Processing, developing students’ basic quality and ability in electronic technology application, especially in the aspects of electronic signal acquisition and processing, embedded technology development and application, electronic facilities’ operation and maintenance, etc. This major cultivates students to have the ability to discover, understand and address electronic technology engineering problems and to gain the potential to innovate or do entrepreneurship in this profession. All students of this major are belong to outstanding-engineer-cultivating plan and the graduates can do technic job or professional educational job in enterprises and government institutions. Graduates of this major can be granted with Bachelor Degree of Engineering, and the distinctive graduates can be recommended to further study as master candidate (majored in Information and Telecommunication Engineering) without examination.

Main Courses: Advanced Mathematics, Mathematics for Engineering, Circuit Analysis, Analog & Digital Electronic Technology, Signal & System, Digital Signal Processing, Electronic Design Automation, DSP technology, Microcontroller and Interface Technology, Computer Network, Advanced Program Design, etc.

 

Telecommunication Engineering

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

Cultivation Target: This major is set with two cultivating directions, Broadband Telecommunication Network Technology, Sensor Network Technology, developing students to the applied talents on engineering and technology who have the fundamental theoretical knowledge on telecommunication technology, system, and corresponding net and who have the primary ability of designing, maintaining, and tuning modern telecommunication system and network, of engineering application, and of engineering management. Graduates from this major can be competent to develop telecommunication technology and equipment, design, operate and maintain telecommunication system, and apply to electronic information technology in enterprises and departments concentrating on telecommunication operation, equipment, and construction. They also can undertake the teaching position in sorts of schools to teach the majors of telecommunication and electronic technology. Graduates of this major can be granted with Bachelor Degree of Engineering, and the distinctive graduates can be recommended to further study as master candidate (majored in Information and Telecommunication Engineering) without examination.

Main courses: Advanced Mathematics, Mathematics for Engineering, Circuit Analysis, Analog Electronic Technology, Digital Electronic Technology, Signal and System, Telecommunication Principle, DSP Technology, Computer Network, Fiber Optic Communication, SPC Switching Theory, Mobile Communication, Sensor Network Technology, Telecommunication System Emulation, Telecommunication Network Construction, etc.

 

Network Engineering

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

Cultivation Target: This major is set with two cultivating directions, System Integration and Intelligent Building, Computer Network Engineering, developing applied engineering technology talents who master the professional knowledge on modern computer network communication, network engineering, and network system management, who have the ability to facilitate computer software, hardware and corresponding engineering technology, and who can be competent to do the job of network system design, system integration, network equipment installation and maintenance, corresponding software development, and network engineering construction and management in enterprises or government institutions concentrating on computer network and computer system application & operation. Graduates of this major can be granted with Bachelor Degree of Engineering, and the distinctive graduates can be recommended to further study as master candidate (majored in Information and Telecommunication Engineering) without examination.

Main courses: Advanced Mathematics, Discrete Mathematics, Basis of Electronic Technology, Advanced Network Program Design, Switching Principle and Equipment, Network Engineering, TCP/IP Protocol, Operation System, Network Integration, Network Equipment Operation and Management, Network Engineering Construction, Network Database Technology, Intelligent Building, etc.

 

Electric Engineering and Automation

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

This major is the outstanding-engineer-cultivating-plan major of provincial level.

Cultivation Target: 2 experimental classes are set, such as the class for outstanding engineers and class for international engineering talents, aiming at developing comprehensive and versatile talents who can conduct system operation and experimental analysis in the domain of electric engineering, especially in power system and automation, power system protection and automated telecontrol technique, power electronic application, etc., developing high-quality engineers with innovative spirit and international perspective, and developing professional technic talents who serve regions of nationalities in Yunnan and Southeast Asia. This major recruits students independently and graduates can be granted with Bachelor Degree of Engineering. The class for outstanding engineers is to cultivate applied professional technic talents who serve regions of nationalities in Yunnan and Southeast region; class for international engineering talents is to cultivate professional technic talents with international educational background. Courses schedule of this class will follow course arrangement from overseas and teach specialty class in English, whose qualified students can apply for studying in cooperated foreign universities for 1 or 2 years. Students who finish the bilateral graduation demands can simultaneously gain bachelor degrees from both countries. Graduates of this major can be granted with Bachelor Degree of Engineering, and the distinctive graduates can be recommended to further study as master candidate (majored in Electric Engineering) without examination.

Main courses: Advanced Mathematics, Mathematics for Engineering, Circuit Theory, Basis of Electronic Technology, Electric Control and PLC, Automation Control Theory, Power Electronic Technology, Electric Machine Drives, Power System Analysis, Power Support for Factory, Power System Protection, High Voltage Technology, Transformer Substation Integrated Automation, New Type of Power System Protection and Fault Location Technology, Power Engineering Project Management, Metal Processing Craft Internship, Course Design, etc.

 

Automation

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

Cultivation Target: This major aims at developing students’ personality, imposing background knowledge on humanity and social science in order for them to become comprehensive, creative talents, to have the ability to understand and address problems of engineering, to have the ability of communication and team cooperation, and to have the integrated quality to conduct jobs on system analysis, integration, operation, and maintenance in the wider domain of automation, especially in industrial automation and power automation. These high-qualified talents on engineering technology would serve regions of nationalities in Yunnan Province and Southeast Asia. Graduates of this major can be granted with Bachelor Degree of Engineering, and the distinctive graduates can be recommended to further study as master candidate (majored in Electric Engineering) without examination.

Main courses: Advanced Mathematics, Mathematics for Engineering, Circuit Theory, Analog Electronic Technology, Digital Electronic Technology, Automation Control Theory, Electric Machine and Drives, Electric Control and PLC, DSP Technology, Detecting Technology, Sensor Technology and Application, Instrument and Process Control, Microcontroller Principle and Application, DCS and Fieldbus Technology, Control System Emulation, Transformer Substation Integrated Automation, Automated Equipment in Power System, etc.

 

Civil Engineering

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

Cultivation Target: This major aims at developing students’ personality, imposing background knowledge on humanity and social science in order for them to become comprehensive, creative talents, to have superior innovative recognition, team corresponding ability, political quality and professional morality, to comprehensively master primary theory and practical skills in civil engineering, and to have the ability to be competent to do technic job and management in civil engineering construction. Students will be trained to become engineers, architects, and supervisors, to utilize engineering skills and knowledge to cope with problems in construction practice, and to finish construction management job with corresponding knowledge. Graduates can engage in civil engineering works in Yunnan and Southeast Asia. This major recruits students independently and graduates can be granted with Bachelor Degree of Engineering.

Main courses: Advanced Mathematics, Mathematics for Engineering, Mechanics, Rock and Soil Mechanics, Hydraulics, Basic Code of Concrete Structure, Engineering Surveying, Construction Project Planning, Engineering Budget, Building Structure against Earthquake, Civil Engineering Construction, Engineering Construction Supervision, Engineering Geology Practice, Engineering Practice with BIM Software Application, etc.

 

Physics

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

Cultivation Target: This major cultivate applied professional talents who can master basic theory and method in Physics, own superior mathematical foundation and experimental skills, have English and computer applied ability, and can conduct education, scientific research, technology, and management in Physics and relative domains of science and technology. Graduates can be source of master candidates for Theoretical Physics and Physics Application, of educational talents for Physics teaching in high schools, and of the talents to do research jobs and skill service positions in Physics, Electronic Information, and computer. 2 directions---Physics Education and Applied Electronic Technology---are set in this major. Graduates can be granted with Bachelor Degree of Science.

Main courses: Advanced Mathematics, Methodology of Mathematical Physics, Mechanics, Thermotics, Electromagnetism, Optics, Modern Physics, Theoretical Mechanics, Electrodynamics, Thermodynamics Statistical Physics, Quantum Mechanics, Circuit Analysis, Analog Electronic Technology, Digital Electronic Technology, Digital Signal Processing, Program Design, Education, Psychology, etc.

 

Physics Application

(4-year undergraduate for Bachelor degree, set for students of science or engineering)

This major is to cultivate comprehensive talents combined with science and engineering knowledge who have solid foundation and methodology in Physics, gain necessary knowledge and skill training in application, possess practical skill and innovative spirit, and own the ability to conduct jobs of technology development, products design and production, operation and management, and professional education in departments on technology, industrial & mining establishments, and scientific research & education which are related to domains of Physics, new energy technology, and sensor technology. 2 directions---New Energy Technology and Sensor Technology---are set in this major. Graduates can be granted with Bachelor Degree of Science.

Main courses: Advanced Mathematics, Mechanics, Thermotics, Electromagnetism, Optics, Modern Physics, Theoretical Physics, Solid State Physics, Electronic Technology, Microcontroller Principle and Application, Program Design, New Energy Technology, Manufacture and Craft of Solar Cells, Photovoltaic Power Technology of Solar Energy, Optoelectronic Technology, Semiconductor Technology, Sensor Technology and Operation, etc.

Practice and Training for Network Engineering

Students’ Participating in Freescale Cup Intelligent Car Racing

Practice and Training for Electronic Technology

Students’ Internship in Power Station

 

Main Courses:

 

 

Introduction of Main Courses

POWER ELECTRONICS

Power electronics is the application of solid-state electronics to the control and conversion of electric power.

The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs starts from a few hundred watts and end at tens of megawatts.

The power conversion systems can be classified according to the type of the input and output power:

Ø  AC to DC (rectifier)

Ø  DC to AC (inverter)

Ø  DC to DC (DC-to-DC converter)

Ø  AC to AC (AC-to-AC converter)

Applications of power electronics range in size from a switched mode power supply in an AC adapter, battery chargers, audio amplifiers, fluorescent lamp ballasts, through variable frequency drives and DC motor drives used to operate pumps, fans, and manufacturing machinery, up to gigawatt-scale high voltage direct current power transmission systems used to interconnect electrical grids. Power electronic systems are found in virtually every electronic device. For example:

DC/DC converters are used in most mobile devices (mobile phones, tablet etc.) to maintain the voltage at a fixed value whatever the voltage level of the battery is.

AC/DC converters (rectifiers) are used every time an electronic device is connected to the mains (computer, television etc.). These may simply change AC to DC or can also change the voltage level as part of their operation.

AC/AC converters are used to change either the voltage level or the frequency (international power adapters, light dimmer). In power distribution networks AC/AC converters may be used to exchange power between utility frequency 50 Hz and 60 Hz power grids.

DC/AC converters (inverters) are used primarily in UPS or renewable energy systems or emergency lighting systems. Mains power charges the DC battery. If the main power fails, an inverter produces AC electricity at mains voltage from the DC battery. Solar inverter, both smaller string and larger central inverters, as well as solar micro-inverter are used in photovoltaic as a component of a PV system.

This course develops the ability to understand and apply the work principles of the power semiconductor devices, the power converters, and power conversion techniques as for electric power processing and control.

Through the study of this course, students are expected to improve their ability of understanding and solving practical engineering problem, to improve their effective communication ability, and to develop their teamwork spirit. This course is critical for the training of engineer in the power electronic application.

ELECTRIC CIRCUITS ANALYSIS

As little as 10 mA AC current can cause temporary paralysis and an inability to let go or withdraw from the current source. If the current bypasses the skin, as little as 10 uA may cause heart failure. Direct current is much less dangerous, unless voltages are high or there is direct connection bypassing the skin. Wet skin has lower resistance, never approach AC-mains-connected electrical equipment or wiring with wet skin or bare feet. Pay special attention to proper grounding of AC power plugs and of anything which may be, deliberately or accidentally, connected to a hot (energized) wire. With good grounding, an accidental short circuit is likely to blow a fuse or circuit breaker, instead of maintaining a shock hazard. Low-voltage circuits, up to 12 VAC or DC may be handled quite safely, as long as the skin is not bypassed (such as with wide contact -- such as grasping non-insulated pliers -- or wet skin, or a metal ring). Working with higher voltages requires serious caution. To understand these, the basic concepts of electric circuits are needed.

An electric circuit is a connection of circuit elements (Voltage/Current sources, Resistors, Inductors and Capacitors, etc.) such that there is some power supplied and dissipated. This means that if you connect a resistor to a battery using conductive wires, then you have created an electrical circuit.

This course deals with the fundamentals of electric circuits, their components and the mathematical tools used to represent and analyze electrical circuits. By the end of the course, the student must be able to confidently analyze and build simple electric circuits.

A useful procedure in electric circuit analysis is to simplify the circuits by reducing the number of components. This can be done by replacing the actual components with other notional components that have the same effect. A particular technique might directly reduce the number of components, for instance by combining impedances in series. On the other hand, it might merely change the form into one in which the components can be reduced in a later operation. For instance, one might transform a voltage generator into a current generator using Norton's theorem in order to be able to later combine the internal resistance of the generator with a parallel impedance load.

Choice of method is to some extent a matter of taste. If the network is particularly simple or only a specific current or voltage is required then “ad-hoc” application of some simple equivalent circuits may yield the answer without recourse to the more systematic methods.

l  Nodal analysis: The number of voltage variables, and hence simultaneous equations to solve, equals the number of nodes minus one. Every voltage source connected to the reference node reduces the number of unknowns and equations by one.

l  Mesh analysis: The number of current variables, and hence simultaneous equations to solve, equals the number of meshes. Every current source in a mesh reduces the number of unknowns by one. Mesh analysis can only be used with networks which can be drawn as a planar network, that is, with no crossing components.

Superposition is possibly the most conceptually simple method but rapidly leads to a large number of equations and messy impedance combinations as the network becomes larger.

 

POWER SYSTEM ANALYSIS

An electric power system (power system for short) is a network of electrical components used to supply, transfer and use electric power. An example of an electric power system is the network that supplies a region's homes and industry with power—for sizeable regions, this power system is known as the grid and can be broadly divided into the generators that supply the power, the transmission system that carries the power from the generating centres to the load centres and the distribution system that feeds the power to nearby homes and industries. Smaller power systems are also found in industry, hospitals, commercial buildings and homes. The majority of these systems rely upon three-phase AC power—the standard for large-scale power transmission and distribution across the modern world. Specialised power systems that do not always rely upon three-phase AC power are found in aircraft, electric rail systems, ocean liners and automobiles.

Electric power is the product of two quantities: current and voltage. These two quantities can vary with respect to time (AC power) or can be kept at constant levels (DC power). Most refrigerators, air conditioners, pumps and industrial machinery use AC power whereas most computers and digital equipment use DC power (the digital devices you plug into the mains typically have an internal or external power adapter to convert from AC to DC power). AC power has the advantage of being easy to transform between voltages and is able to be generated and utilised by brushless machinery. DC power remains the only practical choice in digital systems and can be more economical to transmit over long distances at very high voltages.

The ability to easily transform the voltage of AC power is important for two reasons: Firstly, power can be transmitted over long distances with less loss at higher voltages. So in power systems where generation is distant from the load, it is desirable to step-up (increase) the voltage of power at the generation point and then step-down (decrease) the voltage near the load. Secondly, it is often more economical to install turbines that produce higher voltages than would be used by most appliances, so the ability to easily transform voltages means this mismatch between voltages can be easily managed.

One of the main difficulties in power systems is that the amount of active power consumed plus losses should always equal the active power produced. If more power would be produced than consumed the frequency would rise and vice versa. Even small deviations from the nominal frequency value would damage synchronous machines and other appliances. Making sure the frequency is constant is usually the task of a transmission system operator. In some countries (for example in the European Union) this is achieved through a balancing market using ancillary services.

The components of power systems include supplies (generators), loads, conductors, transformers, capacitors, reactors, power electronics, protective devices, and Supervisory Control And Data Acquisition (SCADA) systems.

This course deals with the knowledge and methods to understand the behavior of power system such as the balance of active power and reactive power, and stability of frequency and voltage. The basic analysis methods include network solving (power flow calculation), fault analysis, static stability analysis, and transient stability analysis.

 

POWER SYSTEM SIMULATION

Simulation is the imitation of the operation of a real-world process or system over time. The act of simulating something first requires that a model be developed; this model represents the key characteristics or behaviors/functions of the selected physical or abstract system or process. The model represents the system itself, whereas the simulation represents the operation of the system over time. A computer simulation is an attempt to model a real-life or hypothetical situation on a computer so that it can be studied to see how the system works. By changing variables in the simulation, predictions may be made about the behaviour of the system. It is a tool to virtually investigate the behaviour of the system under study.

Power system is a so complex network with supper high voltage and current and running 24 hours 7 days that any experiment on it is almost impossible. To understand and predict its behavior, the computer simulation is an appropriate solution.

Before the advent of large scale digital computers, power system simulation was carried out on network analyzers, which were essentially miniature scale models of power systems with scaled generators, loads, and line simulators. Now, with powerful computer and simulation software, large scale power system can be simulated with more details and shorter period.

There are normally five or more types of simulation for power system, depending on the simulation software:

Ø  Load flow calculation

Ø  Short circuit analysis

Ø  Transient stability simulation

Ø  Unit commitment

Ø  Optimal power flow

The load-flow (power flow) calculation is the most common network analysis tool for examining the undisturbed and disturbed network within the scope of operational and strategical planning. On the basis of the network topology with the impedances of all devices as well as with the infeeds and the consumers, the load-flow calculation can provide voltage profiles for all nodes and loading of network components, such as cables and transformers. With this information, compliance to operating limitations such as those stipulated by voltage ranges and maximum loads, can be examined. This is, for example, important for determining the transmission capacity of underground cables, where the influence of cable bundling on the load capability of each cable has to be taken also into account. Due to the ability to determine losses and reactive-power allocation, load-flow calculation also supports the planning engineer in the investigation of the most economical operation mode of the network. When changing over from single and/or multi-phase infeed low-voltage meshed networks to isolated networks, load-flow calculation is essential for operational and economic reasons. Load-flow calculation is also the basis of all further network studies, such as motor start-up or investigation of scheduled or unscheduled outages of equipment within the outage simulation.

Short circuit analysis analyzes the power flow after a fault occurs in a power network. The faults may be three-phase short circuit, one-phase grounded, two-phase short circuit, two-phase grounded, one-phase break, two-phase break or complex faults.

The goal of transient stability simulation of power systems is to analyse the stability of a power system in a time window of a few seconds to several tens of seconds. Stability in this aspect is the ability of the system to quickly return to a stable operating condition after being exposed to a disturbance such as for example a tree falling over an overhead line resulting in the automatic disconnection of that line by its protection systems. In engineering terms, a power system is deemed stable if the substation voltage levels and the rotational speeds of motors and generators return to their normal values in a quick and continuous manner.

The problem of unit commitment involves finding the least-cost dispatch of available generation resources to meet the electrical load.

For the optimal power flow simulation, the simulator must calculate the flows in the AC network that result from any given combination of unit commitment and generator megawatt dispatch, and ensure that AC line flows are within both the thermal limits and the voltage and stability constraints.

For this course, we only require to understand and apply the simulation of power flow calculation and short circuit analysis.

ELECTRIC POWER ENGINEERING

Electric power engineering or power engineering, also called power systems engineering, is a subfield of energy engineering and electrical engineering that deals with the generation, transmission, distribution and utilization of electric power and the electrical devices connected to such systems including generators, motors and transformers. Although much of the field is concerned with the problems of three-phase AC power – the standard for large-scale power transmission and distribution across the modern world – a significant fraction of the field is concerned with the conversion between AC and DC power and the development of specialized power systems such as those used in aircraft or for electric railway networks. Power Engineering draws the majority of its theoretical base from electrical engineering and while some power engineers could be considered energy engineers, energy engineers often do not have the theoretical electrical engineering background to understand power engineering.

Power Engineering deals with the generation, transmission, distribution and utilization of electricity as well as the design of a range of related devices. These include transformers, electric generators, electric motors and power electronics.

The power grid is an electrical network that connects a variety of electric generators to the users of electric power. Users purchase electricity from the grid so that they do not need to generate their own. Power engineers may work on the design and maintenance of the power grid as well as the power systems that connect to it. Such systems are called on-grid power systems and may supply the grid with additional power, draw power from the grid or do both. The grid is designed and managed using software that performs simulations of power flows.

Power engineers may also work on systems that do not connect to the grid. These systems are called off-grid power systems and may be used in preference to on-grid systems for a variety of reasons. For example, in remote locations it may be cheaper for a mine to generate its own power rather than pay for connection to the grid and in most mobile applications connection to the grid is simply not practical.

Today, most grids adopt three-phase electric power with alternating current. This choice can be partly attributed to the ease with which this type of power can be generated, transformed and used. Often, the power is split before it reaches residential customers whose low-power appliances rely upon single-phase electric power. However, many larger industries and organizations still prefer to receive the three-phase power directly because it can be used to drive highly efficient electric motors such as three-phase induction motors.

Transformers play an important role in power transmission because they allow power to be converted to and from higher voltages. This is important because higher voltages suffer less power loss during transmission. This is because higher voltages allow for lower current to deliver the same amount of power, as power is the product of the two. Thus, as the voltage steps up, the current steps down. It is the current flowing through the components that result in both the losses and the subsequent heating. These losses, appearing in the form of heat, are equal to the current squared times the electrical resistance through which the current flows, so as the voltage goes up the losses are dramatically reduced.

For these reasons, electrical substations exist throughout power grids to convert power to higher voltages before transmission and to lower voltages suitable for appliances after transmission.

Power engineering is a network of interconnected components which convert different forms of energy to electrical energy. Modern power engineering consists of four main subsystems: the generation subsystem, the transmission subsystem, the distribution subsystem and the utilization subsystem. In the generation subsystem, the power plant produces the electricity. The transmission subsystem transmits the electricity to the load centers. The distribution subsystem continues to transmit the power to the customers. The utilization system is concerned with the different uses of electrical energy like illumination, refrigeration, traction, electric drives, etc. Utilization is a very recent concept in Power engineering.

Although the operation of power system need the cooperation of the primary system including generators, transformers, lines and loads, as well as the secondary system including relay protections and supervising and control systems, this course only deal with the primary system.

 

 

Electric Distribution Systems

This course provides a comprehensive treatment of electric distribution systems. Not only cover specific topics in more depth but also deals with the key topics of interest to distribution system engineers. The course introduces these topics from two points of view:

1) The practical point of view by providing practical examples and the problems which can be solved.

2) The academic point of view where the analysis and various techniques used for distribution system planning are explained.

The students will gain an understanding of distribution systems from both practical and academic aspects, will be able to outline and design a distribution system for specific loads, cities, zones, etc. Students will also be able to recognize the problems which may occur during the operation of distribution systems and be able to propose solutions for these problems.

 

Power System Protective Relaying Principles and Applications

What is a relay; more specifically, what is a protective relay? The Institute of Electrical and Electronic Engineers (IEEE) defines a relay as “an electric device that is designed to respond to input conditions in a prescribed manner and, after specified conditions are met, to cause contact operation or similar abrupt change in associated electric control circuits.” A note adds: “Inputs are usually electric, but may be mechanical, thermal, or other quantities or a combination of quantities. Limit switches and similar simple devices are not relays” (IEEE C37.90)

In this course we focus on one of the more interesting and sophisticated applications of relays, the protection of electric power systems. The IEEE defines a protective relay as “a relay whose function is to detect defective lines or apparatus or other power system conditions of an abnormal or dangerous nature and to initiate appropriate control circuit action” (IEEE 100).

This course explores developments in the creation of smarter, more flexible protective systems based on advances in the computational power of digital devices and the capabilities of communication systems that can be applied within the power grid. Examines the regulations related to power system protection and how they impact the way protective relaying systems are designed, applied, set, and monitored. Considers the evaluation of protective systems during system disturbances and describes the tools available for analysis. Addresses the benefits and problems associated with applying microprocessor-based devices in protection schemes. Contains an expanded discussion of intertie protection requirements at dispersed generation facilities. Providing information on a mixture of old and new equipment, reflects the present state of power systems currently in operation, making it a handy reference for practicing protection engineers.

This course include the coverage of the basic mathematical requirements for fault analysis, and real-world examples ensure engineering students receive a practical, effective education on protective systems..

 

Digital circuit logic design

Fundamentals of electronics is a rudimental course of electronic technology for undergraduates majoring in the specialty of electricity. This course consists of two parts: fundamentals of analog electronics and fundamentals of digital electronics. It chiefly studies the working principles and applications of electronic devices and electronic circuits. Through this course, students can acquire elementary theory and knowledge of electronic technology, and develop their initial ability of analyzing and designing electronic circuits.

The major contents of fundamentals of digital electronics include basic of logic algebra, logic gate circuit, combinational logic circuit, trigger, sequential logic circuits, semiconductor memory, programmable logic device, pulse waveform generation and transform, analog-digital and digital-analog converter.

Principle and Interface Technology of Microcomputer

As the operating part and control core of the microcomputer, microprocessor can fetch and execute instruction, exchange the information with the memory and I/O interface. The integrated system with the microprocessor, external storage and interface units is used widely in control field. So it is necessary for the students of Electric Engineering and Automation.

This course analyzes the principle and interface technology of microcomputer by 8086 series 16 bit Microprocessor. It elaborates the concept and composition of microprocessor, its instruction system and the program design method. Besides, it introduces the various types of memory, timing sequence, interruption, interface units and technology.

There are nine chapters. The basic contents can be sum up in three parts. The first two chapters introduce the development of computers, functions and bus architecture for hardware, and three kinds of numerical system. Then, they elaborate in details 8086’s system structure and the functions of each components, timing sequence, initialization and minimum system.

Included chapter 3 and 4, the second part elaborates seven addressing modes, instruction form and code, assembly language and program, which is the most important part. Classified by the running process, assembly program divides into four types (Sequential program, Branching program, Cycle program, and Subprogram).

The following five chapters concern memory, interface units and their application. Dividing into three main kinds due to content stored and operating speed, memory is used for storing the data and the cord, whose connection with the microcomputer can expand its storage capacity. I/O interface is used for exchange the information with other modules, for instance, receiving signals from the sensor circuits, transmitting signals to the control devices or the display units. Interruption is a significant function of microprocessor, which can extend program structure based on the cord or 8259 programmable interrupt controller. Programmable timer and counter is a basis of timing. Most signals in control device transfer in analog quantity, while the microcomputer operates in digital quantity. Therefore analog-to-digital conversion and digital-to- analog conversion are necessary.

Through the study, students are expected to understand the structure and operating principle of the microprocessor, and master its program design and interface technology. Finally, train students’ capability of using computer systems for different levels of automation applications.

Electronic Circuit

Electronic Circuit is professional course for students majored in Electric Engineering and Automation, Electronic Information Engineering, Automation and Communication Engineering etc.

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow. The combination of components and wires allows various simple and complex operations to be performed: signals can be amplified, computations can be performed, and data can be moved from one place to another.

The course is required to master the basic elements of analog electronic circuits and the principle of circuits. The main contents are divided into several aspects: 

Ø  The basic concepts of analog circuits and signals.  

Ø  The principle of diodes, bipolar junction transistors (BJTs) and field-effect transistors (FETs).  

Ø  The circuit structures and  mechanisms of basic operational amplifiers, including comparators ,summing amplifiers, integrators and differentiators.

Ø  The circuit structures and mechanisms of oscillators, timers, regulators and data conversion circuits.

This course develops the ability to understand the principles of basic analog circuits, to analyze the methods using to analysis circuits of different functions, and to design circuits according to demands.

Through the study of this course, students are expected to improve their ability of understanding and solving practical engineering problem, to improve their effective communication ability, and to develop their teamwork spirit. This course is critical for the training of engineer about ability to analyze and design circuit.

 

Signals and Systems

Signals and Systems is professional course for students majored in Electric Engineering and Automation, Electronic Information Engineering, Automation and Communication Engineering etc.

A signal as referred to in communication systems, signal processing, and electrical engineering is a function that conveys information about the behavior or attributes of some phenomenon. In the physical world, any quantity exhibiting variation in time or variation in space (such as an image) is potentially a signal that might provide information on the status of a physical system, or convey a message between observers, among other possibilities.

The course can be divided into signal decomposition and system analysis. The main contents are divided into several aspects: 

1、Introduces some of the elementary ideas related to the mathematical representation of signals and systems, including continuous-time and discrete-time signals and systems, basic system properties, etc.

2、Analyzes the character of linear and time-invariant(LTI) systems;

3、Presents methods of analysis in both continuous and discrete time systems, including Fourier transform, Laplace transform and z- transform.

4、Introduces the principle and implication of sampling .

This course develops the ability to understand and apply the principles of the signals and systems and the methods using to analysis signals and systems, including Fourier transform, Laplace transform and z- transform.

Through the study of this course, students are expected to improve their ability of understanding and solving practical engineering problem, to improve their effective communication ability, and to develop their teamwork spirit. This course is critical for the training of engineer in the signals and systems

 

 

·Power Generation by Renewable Energy

The provision of sustainable energy supplies for an expanding and increasingly productive world is one of the major issues facing civilization today. Renewable Energy: Power for a Sustainable Future, the Course, examines both the practical and economic potential of the renewable energy sources to meet this challenge.

Renewable Energy will focus on the current commonly used new energy power generation technology development and application of the status quo, including solar photovoltaic power generation technology, solar thermal power generation technology, wind power generation technology, nuclear power, clean coal power generation technology, biomass power generation technology, geothermal electrical technology, marine power generation technology, fuel cell power generation technology.

This course is a theoretical study course, through the course of study, so that students understand the various new energy technology theory, technology, industry status and development trend.

The course can help the students to fully understand and master the use of new energy sources in the form of, especially the new energy power generation technology basic theory and the newest trends. To further broaden the students in the field of professional knowledge, enhance students of new energy power generation technology to learn and study interest.

Smart grid

Smart grid is the power grid, also known as the "2 power", which is based on high-speed bidirectional communication network integration, through the control method of advanced sensing and measurement technology, advanced equipment, advanced technology and application of advanced decision support system technology, to achieve grid reliability safe, economic, efficient, environmental friendly and safe target, its main features include self-healing, incentive and resist the attacks, including users, in twenty-first Century to meet the user demand for power quality, allowing various forms of power generation access, start of power market and asset optimization and efficient operation 。

The course describes the impetus for change in the electric utility industry.Discusses the business drivers, benefits, and market outlook of the smart grid initiative.Examines the technical framework of enabling technologies and smart solutions.Identifies the role of technology developments and coordinated standards in smart grid, including various initiatives and organizations helping to drive the smart grid effort.Presents both current technologies and forward-looking ideas on new technologies.Discusses barriers and critical factors for a successful smart grid from a utility, regulatory, and consumer perspective.Summarizes recent smart grid initiatives around the world.Discusses the outlook of the drivers and technologies for the next-generation smart grid.

 

 

 

 

·Graphing of Architectural Engineering

The curriculum of Graphing of Architectural Engineering studies the theory and method of making and reading architectural graphing, which is the basic skill of engineers expressing their work, communicating their ideas and directing the constuction. The curriculum is a basic major course of high practicalness, which develops students’ skill of reading and making architectural construction graphing,and develops their spacial thinking ability.

 

   

·Material of Civil Engineering

The curriculum of Material of Civil Engineering is a basic major course of civil engineering. The course provides the basic theory of learning normal building material, which are using in architecture,construction and structure,to making students master the skill of applying building material,includes concrete, steel, masonry, woods,glass and so on. The curriculum also provides the training of building material experiments.

 

 

·Building Architecture

The curriculum of Building Architecture is a course to study the theory and method of architecture space design and building construction, it provides the basic knowledge for engineer and management in building industry. The course includes architecture and construction of industrial and civil buildings. The part of architecture is to introduce the principle and method of building design, the part of construction is to introduce materials,building components and architecture details. The curriculum makes students master the process of design and the skills of design architectural construction graphing, especially the design of middle and small buildings.

 

 

·The Principle of Reinforced Concrete Structure

The curriculum of The Principle of Reinforced Concrete Structure is a basic major course of civil engineering,  makes students master the principle of designing reinforced concrete structure which are needed in building industry. The course provides the theory of concrete structure mechanics, includes the mechanics of materials, the calculation of bending component’s cross section and oblique section, the calculation of axial compression and eccentric compression components, the calculation of axial tension and  eccentric tension components, the deflection and crack width of reinforced concrete structure.

 

·Thermology

    "Thermology" is one of main courses of the "college physics", and it is a basic course for students specializing in physics. Through the study of this course, students could master basic laws of heat phenomena, and lay the theoretical foundation for the study of other courses in physics. This course is divided into three parts in our teaching plan:

Thermodynamic:It is the macroscopic theory of heat phenomena. In this part, students learn how to obtain macroscopic laws of heat phenomena through direct observation and experimental measurement. They will understand that laws of thermodynamic do not take into account the microscopic structure of the matter, and we do not make a microscopic explanation to these laws in this part. Important concepts should be understood for all students including temperature, internal energy, enthalpy, entropy, etc. Laws or principles we will explain including the zeroth, the first law and the second law of thermodynamics and the “entropy increase principle”. The last content of this part, it will be explain in detail how to apply these laws to equilibrium thermodynamic process.

Statistical physics: The microscopic theory of heat phenomena. In this part, students learn how to obtain thermal properties from the microstructure of matters i.e., from the molecular motion and interactions between them using statistical methods. Then, it is feasible to give the microscopic interpretation of laws of thermodynamics in the last part. Regrettably, it is impossible to teach the complete statistical physics for one semester. The content is mainly about the dynamic theory of the molecular motion in this course. The content include: microscopic interpretations of the temperature and pressure of gas; the ideal gas; distribution laws of thermal motion of gas molecules i.e., the Maxwell’s law of the velocity distribution, the Boltzmann’s law of the energy distribution and the equipartition theorem of energy.

Properties of matter: laws of the first two parts will be applied to explain the properties of matter. Students will learn the basic theory of gas, liquid, and solid in this part. The theory of phase transition is also briefly introduced here.

 

·Fundamentals of Semiconductor Technology

This course is a theoretical course. In this course, students will learn the basic knowledge of semiconductor materials and devices, and will be familiar with basic concepts of semiconductor materials and devices, and understand the basic physical principle of  semiconductor materials and devices, and build the foundation for the next study of manufacturing process, test and experiment of semiconductor devices.

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E-mail: Fanjing9476@sina.com

Website: Dxxy.ynni.edu.cn