430-2302/03 – Power Semiconductor Systems I (VPS1)
| Gurantor department | Department of Applied Electronics | Credits | 6 |
| Subject guarantor | Ing. Aleš Havel, Ph.D. | Subject version guarantor | Ing. Aleš Havel, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 2 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2019/2020 | Year of cancellation | |
| Intended for the faculties | FEI | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Bipolar semiconductor device.
Unipolar semiconductor devices and IGBTs.
Hard- and soft switching of semiconductor switches, safe operating area, resonant converters.
Analysis of line commutated rectifiers, output characteristics, EMC.
Analysis of pulse converters, buck converters, step-down converters, control methods of pulse converters.
Voltage type inverters, structures and control methods.
Current type inverters, structures and control methods.
Direct and indirect frequency converters.
AC current regulators.
DC switched power sources.
Uninterable powers sources (UPS) and charging power sources.
High- and middle- frequency converters for electrical heating.
Power AC active filters.
Semiconductor converters for automotive applications.
Semiconductor converters for traction.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
Power electronics is a branch which intensively enters all technical areas of the present living. Practical utilization of the conversion principle of the electric energy via semiconductor switching devices requires apart from the knowledge about principle and function of elementary semiconductor converters also especially about their industrial and commercial applications. The subject provides pieces of knowledge to students in field of applied and commercial electronics, power electronics, electric drives and other segments of electrical engineering.
Compulsory literature:
Recommended literature:
Heumann, K.: Basic Principles of Power Electronics. Springer-Verlag Berlin Heidelberg New York, ISBN 3642826768, 2012.
Additional study materials
Way of continuous check of knowledge in the course of semester
Verification of study:
Checktests TEST no. 1, TEST no. 2 (see exercises)
Conditions for credit:
100% practical instruction participation, extraordinary substitute just on base of previous teacher acceptance.
Delivering of practical instruction courseworks on schedule = 1 week after appropriate practical instruction
100% checktests participation on schedule (exact date will notice minimal 1 week before). In case of checktests attendance in another date (not officially scheduled) its possible to obtain just 80% of conventional maximal amount of points. Each checktest its possible to repeat one time, in case of repeat checktest its possible to obtain just 80% of conventional maximal amount of points!
Minimal amount of received points is 25 from 40 points.
Points classification of practical instructions - maximal 40 points, devided to:
T1 = max. 10 points
T2 = max. 10 points
Courseworks of practice instructions = max. 20 points
E-learning
Study supports are available in the LMS to students of the course.
Other requirements
There are no additional requirements for the student.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures
Ideal and real semiconductor switch, scope, overview and utilization of power semiconductor components.
Power semiconductor switches – diodes, thyristors, switchable thyristors, triacs.
Power semiconductor switches – bipolar transistors, field effect transistors, IGBT.
Power losses and cooling of power semiconductor components.
Uncontrolled rectifiers – circuit diagrams and principles, influence of the supply grid and the load.
Controlled rectifiers – circuit diagrams and principles, influence of the supply grid, load and control angle.
DC/DC converters – circuit diagrams and principles, analysis of the output voltage and current.
DC/DC converters – multi quadrant topologies, control methods, analysis of the output voltage and current.
Voltage inverters – power circuits, utilization, function and voltage and current waveforms.
Current inverters – power circuits, utilization, function and voltage and current waveforms.
Control methods of inverters – possibilities of output frequency, current and voltage control.
AC/AC converters – circuit diagrams, utilization, function and voltage and current waveforms.
Indirect frequency converters with voltage and current DC link types – function, utilization and waveforms.
Switching power supplies – forward and flyback converter.
Exercises
Solved examples from selected chapters of power semiconductor systems:
Average and RMS values, power losses of diodes, thyristors and transistors.
Design and calculation of colling systems for PSS.
Uncontrolled rectifiers.
Controlled rectifiers.
DC/DC converters.
Voltage inverters.
AC/AC converters.
Simulation of power semiconductor converters, their losses, cooling – demonstration of OrCAD/Pspice SW.
Test 1 – Power semiconductor components, cooling and rectifiers.
Test 2 – DC/DC converters, Inverters, AC/AC converters, switching power supplies.
Laboratory exercises
Laboratory task from controlled rectifiers.
Laboratory task from DC/DC converters.
Laboratory task from voltage inverters.
Laboratory task from AC/AC converters.
Projects
Evaluation of laboratory measurements from laboratory exercises:
Measurement report from controlled rectifiers.
Measurement report from DC/DC converters.
Measurement report from voltage inverters.
Measurement report from AC/AC converters.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction