Introduction to closed loop control of DC and AC electrical drives. Understanding of various control techniques. Design of electric drive controllers. Controller synthesis with an objective to obtain optimal process response.

After completing the course, the students are expected to: 1. Know the essential control principles of most common electric drives. 2. Define control algorithm of an electric drive based on a requirement specification and assure the safe operation of the system. 3. Make a dynamic model of electric drive system including a simple mechanical system and a simple model of a power electronic converter. 4. Use synthesis methods for tuning of linear controllers. 5. Optimize the adjustment of the controllers in the cascade control system with an objective to obtain optimal process response. 6. Make measurements to analyze electrical machines and drives operation.

Elements of controlled electric drive system. Basic closed loop topologies of electrical drives. Basic types of controllers. P, PI, PID controllers. Methods of current, speed, torque and position control. Cascade control structure. Performance criteria of the control system. Transfer functions of drive systems. Controller synthesis for first and second order systems. Quality and dynamic performances of control system. Analog and digital controller design. Control of power electronic converters and electric drives. Synthesis and controller design for a DC motor. Implementation of a scalar controlled induction motor drives. Design of controlled current induction motor drive systems. Synthesis and controller design for vector-controlled induction motor drive systems. The influence of motor parameters on the performance of the vector controlled electric drive. Direct torque control for induction motor drives. Synchronous motors in electric motor drive.

Lectures, Exercises.