1. With the aid of diagrams, discuss in detail each of the following elements of electric motor drive systems: four quadrant operation, voltage control, current control, Buck and Boost converters, inverters, cycloconverter, Ward Leonard controller and four sensors used in motor drive control systems.
2. From electrical project work done at the UCBC or at work or as a hobby, or if not, by research, describe, with the aid of diagrams, the electric drive system of your practical or researched system.