6.622 Power Electronics (Spring 2023, MIT OCW). Instructor: Prof. David Perreault. 6.622 covers modeling, analysis, design, control, and application of circuits for energy conversion and control. As described by the Institute of Electrical and Electronics Engineers (IEEE), power electronics technology "encompasses the use of electronic components, the application of circuit theory and design techniques, and the development of analytical tools toward efficient electronic conversion, control, and conditioning of electric power." Students taking this class will come away with an understanding of the fundamental principles of power electronics, and knowledge of how to both analyze and design power electronic components and systems.
(from ocw.mit.edu)
Lecture 21 - Three-Phase Systems, Part 1
This lecture discusses the origins of polyphase and why we use 3-phase systems.