Design and Control of Electric Machines

Subject

This course covers modeling and control concepts of modern drive systems and provides a deeper understanding of the dynamic operation of electric machines. Different aspects arising in the control and design of electric drive systems are investigated. The exercises are used to consolidate the concepts discussed.

In the lecture the follwoing topics are discussed:

• Introduction to variable speed motor drive systems consisting of
  • Electromechanical unit
  • Power electronic unit
  • Control unit
  • Measurement unit
    
    
•  Control structures and strategies of DC machine, synchronous machine and asynchronous machine
  • Cascaded control
  • U/f control
  • Slip control
  • Field-oriented control
    
    
• Dynamic operation of electric machines
  • Dynamic modeling of electromechanical system
  • Controller types and design
  • Current/torque control
  • Speed control (Voltage control / Flux weakening)
    
    
• Power electronic inverter circuits in variable speed drive systems
  • Voltage source inverter systems
  • Basic operation and pulse width modulation
     
• Basic design principles of variable speed motor drives systems
  

Additional information is given at: https://moodle-app2.let.ethz.ch/