Problems #3

1. How efficiency of an induction motor drive may be optimized using a loss model controller? What are the merits and limitations of a loss model controller? For a vector controlled drive design a complete loss model controller to optimize the system efficiency.

2. What is a search controller? How efficiency of an induction motor drive may be optimized using a search controller? Discuss the different types of search controller available in the literature. What are the problems of a search controller and how these can be reduced/eliminated?

3. Discuss a hybrid controller to optimize the efficiency of an indirect vector controlled induction motor drive.