Switching strategies for power electronic converters

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Shivkumar Iyer

32:26:30

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1. Introduction

1. Welcome.mp4

13:46

2. Target audience.mp4

10:35

3.1 resources.pdf

3. Course requirements.mp4

14:59

4. Completing the course.mp4

11:01

2. Concept of Modulation in Power Electronics

1. Introduction.mp4

05:11

2. Background from communications.mp4

16:01

3. Process of modulation.mp4

15:37

4. Amplitude Modulation (AM).mp4

13:56

5. Preparing the simulation environment.mp4

20:31

6. Resources on Numpy and Matplotlib.mp4

05:09

7. Installing Numpy and Matplotlib.mp4

07:35

8.1 amplitude modulation.zip

8. Simulating Amplitude Modulation (AM) - part 1.mp4

25:16

9. Simulating Amplitude Modulation (AM) - part 2.mp4

11:34

10. Analyzing the AM modulated waveform.mp4

16:27

11. Fourier Series.mp4

14:00

12. Fourier Transform.mp4

20:36

13.1 amplitude modulation.zip

13. Performing DFT using Numpy.mp4

19:16

14. Using the fft method in the fft module.mp4

24:24

15. Normalizing the frequency range using fftfreq method.mp4

21:15

16. Performing DFT on a real signal using rfft method.mp4

25:39

17. Performing DFT on a noisy signal.mp4

19:18

18.1 frequency modulation.zip

18. Frequency Modulation (FM) and frequency response using DFT.mp4

22:49

19. Overview of power electronics.mp4

30:35

20.1 single switch example.zip

20. Rectangular approximation of a cosine waveform.mp4

33:54

21. DFT of the rectangular waveform.mp4

11:36

22. Introducing Pulse Width Modulation (PWM) in power electronics.mp4

28:22

23.1 single switch example.zip

23. Implementing PWM in Python.mp4

25:05

24. Analyzing the PWM output waveform.mp4

11:23

25. Performing DFT on the PWM output waveform.mp4

12:39

26. Closing discussions on PWM concept.mp4

14:29

27. Description of the buck converter.mp4

18:25

28. Installing Python Power Electronics.mp4

20:39

29.1 buck converter.zip

29.2 component params.pdf

29. Starting with the buck converter simulation.mp4

27:12

30. Starting with the modulator for the buck converter.mp4

24:03

31. Analyzing the operation of the buck converter.mp4

27:50

32. Performing DFT on converter voltages.mp4

34:33

33. Conclusions.mp4

05:04

3. Converters with two controllable power devices

1. Introduction.mp4

04:07

2. Expanding the buck converter to include boost functionality.mp4

19:29

3.1 buck extension.zip

3. Simulating the modified buck-boost converter - part 1.mp4

24:07

4. Simulating the modified buck-boost converter - part 2.mp4

21:52

5. The half-bridge module or the converter leg.mp4

22:00

6. Bidirectional power converters.mp4

16:01

7.1 bidirectional buck.zip

7. Simulation of a bidirectional buck converter - part 1.mp4

21:43

8. Simulation of a bidirectional buck converter - part 2.mp4

27:47

9. Simulation of a bidirectional buck converter - part 3.mp4

13:19

10. Forbidden conduction modes of the half-bridge converter.mp4

19:31

11. Bidirectional buck-boost converter.mp4

08:10

12.1 bidirectional buck boost.zip

12. Simulation of a bidirectional buck-boost converter - part 1.mp4

23:48

13. Simulation of a bidirectional buck-boost converter - part 2.mp4

23:05

14. Simulation of a bidirectional buck-boost converter - part 3.mp4

23:14

15. Dc-ac converter using a half-bridge module.mp4

17:47

16.1 dc ac converter.zip

16. Simulation of a dc-ac converter using a half-bridge - part 1.mp4

19:04

17. Simulation of a dc-ac converter using a half-bridge - part 2.mp4

20:16

18. Simulation of a dc-ac converter using a half-bridge - part 3.mp4

14:34

19. Conclusions.mp4

04:34

4. Full-bridge Converter

1. Introduction.mp4

05:42

2. The full-bridge converter.mp4

15:34

3. Bipolar PWM strategy.mp4

15:54

4. Commercial full-bridge Intelligent Power Modules (IPMs).mp4

08:14

5.1 bipolar pwm.zip

5. Simulation of full-bridge converter with bipolar PWM - part 1.mp4

25:37

6. Simulation of full-bridge converter with bipolar PWM - part 2.mp4

12:25

7. Simulation of full-bridge converter with bipolar PWM - part 3.mp4

19:57

8. Beyond bipolar PWM.mp4

11:15

9. Output voltage as a vector.mp4

21:40

10.1 dc dc.zip

10. Simulation of full-bridge dc-dc converter with unipolar PWM - part 1.mp4

19:27

11. Simulation of full-bridge dc-dc converter with unipolar PWM - part 2.mp4

22:12

12. Simulation of full-bridge dc-dc converter with unipolar PWM - part 3.mp4

23:50

13. Simulation of a full-bridge dc-dc converter with unipolar PWM - part 4.mp4

21:21

14.1 dc ac.zip

14. Simulation of a full-bridge dc-ac converter with unipolar PWM.mp4

25:09

15.1 phase shift pwm.zip

15. Simulation of a full-bridge dc-dc converter with phase-shift PWM - part 1.mp4

22:07

16. Simulation of a full-bridge dc-dc converter with phase-shift PWM - part 2.mp4

27:17

17. Simulation of a full-bridge dc-dc converter with phase-shift PWM - part 3.mp4

11:09

18. Conclusions.mp4

06:09

5. Three-phase converters

1. Introduction.mp4

05:30

2. Overview of three-phase systems.mp4

19:00

3. Topology of three-phase converter.mp4

11:36

4. Computing the converter output voltages.mp4

18:36

5.1 basic pwm.zip

5. Simulation of three-phase converter with sine-triangle PWM - part 1.mp4

21:22

6. Simulation of three-phase converter with sine-triangle PWM - part 2.mp4

25:06

7. Remarks about sine-triangle PWM for three-phase converters.mp4

09:49

8.1 vector calculations.zip

8. Vector representation of three-phase voltages.mp4

24:38

9. Computing converter pole voltages.mp4

20:58

10. Computing converter output voltage vectors.mp4

26:19

11. Generating vector diagrams with the quiver method.mp4

23:50

12. Using the quiverkey method to label vector diagrams.mp4

27:11

13. Defining references for the required output voltages.mp4

18:03

14. Plotting converter voltage vectors with required output voltage vectors.mp4

18:47

15. Analyzing PWM pulses for developing vector modulation strategy.mp4

29:11

16.1 vector calculations.zip

16. Space Vector PWM (SVPWM).mp4

24:26

17. Identifying converter voltage vectors - part 1.mp4

27:54

18. Identifying converter voltage vectors - part 2.mp4

19:22

19. Creating the vector sequence lookup table.mp4

12:13

20. Calculating time intervals for the converter vectors in the sequence.mp4

33:10

21.1 svpwm.zip

21. SVPWM simulation - part 1.mp4

29:35

22. SVPWM simulation - part 2.mp4

22:50

23. SVPWM simulation - part 3.mp4

25:54

24. SVPWM simulation - part 4.mp4

16:45

25. SVPWM simulation - part 5.mp4

21:13

26. SVPWM simulation - part 6.mp4

09:48

27. SVPWM simulation - part 7.mp4

07:39

28.1 vector calculations.zip

28. Avoiding saturation and determining converter capacity.mp4

36:00

29. Conclusions.mp4

05:03

6. Conclusions

1. Conclusions.mp4

14:31

Description

Learning through simulations using Python

What You'll Learn?

Pulse Width Modulation (PWM) from the basics
Understanding the capability of a power converter
Co-ordinating gating signals for converters with multiple power devices
Formulating PWM strategies as control code
Simulating power converters and PWM control code with Python
Vector representation of power converter output voltages
Space Vector Pulse Width Modulation (SVPWM) strategies
Implementing SVPWM for two-level converters
Performing frequency analysis using FFT with Python

Who is this for?

Junior undergraduates starting with power electronics

Senior undergraduates preparing for industry jobs

Graduate students starting with their projects

Fresh recruits in the power industry

What You Need to Know?

Basic electrical engineering

Basic power electronics

Python programming

Simulating circuits with Python Power Electronics

More details

Description
For a young engineer beginning to work on projects on power electronics, getting started with analysis and simulation of power converters can be challenging as there are not many resources that deal with practical power converters in detail with respect to analysis and simulations. This results in a great deal of frustration at the early stages thereby making progress towards more advanced topics slow and difficult. This lack of interesting and interactive educational materials in turn results in most electrical engineers not choosing power electronics as a specialization which in turn results in a scarcity of engineering talent in industry.
This course is a detailed and interactive course that delves into the depths of power converters alone without any reference to applications. Students will learn how to analyze power converters and their capability through logic and reasoning, and with visual tools such as circuit conduction paths, switching tables and vector diagrams. Switching strategies will be introduced from the very basics by treating them as puzzles, thereby giving students the tools to formulate switching strategies for any converter that they may come across. The course features detailed simulations where students can simulate in parallel and analyze the results. The simulations will include every detail and will also address some of the challenges that may be faced while translating some of the switching strategies into a hardware implementation.
Who this course is for:
Junior undergraduates starting with power electronics
Senior undergraduates preparing for industry jobs
Graduate students starting with their projects
Fresh recruits in the power industry

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I did my Master's and PhD in power electronics after which I spent several years working for both big companies like ABB and GE as well as a number of start-ups. I specialized in the field of power converter control and smart grids and have published prolifically in high impact international journals and conferences besides also being the author of two books.I started programming at the age of 14 and over the past 20 years have programmed in several languages - C, C++, Python, JavaScript. I started taking a keen interest in open source software after I became a Linux user when I was a graduate student.My expertise in electrical engineering and programming therefore resulted in me creating open source software for electrical engineers. I use open source software for teaching electrical engineering to students and practicing engineers with the typical theme of my courses being the application of programming to solve engineering problems.

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