The development of an educational package for variable speed drives

Abstract

The purpose of this research is to develop an educational package for variable speed drives. The pmgram is PC based and can therefore run on any IBM PC or compatibles. It is intended to assist students in learning how variable speed drive circuits work.Simulation studies are performed on selected pre-constructed circuits and vital information like speed, torque, voltage etc. can be obtained. This program is based on an existing package called CASED. CASED was developed for the dynamic and steady state simulation of electrical drives.The pre-constructed circuits include a number of convertor topologies. The list includes single phase, three phase half wave and six pulse convertor circuits. All the above are a.c. to d.c. convertors. The package also includes single and three phase inverters and special application circuits like twelve puke convertors.