Vector control techniques for induction motors

Abstract

This paper discusses the basic principles of vector control as applied to induction motors. Two common implementations are described and modelled. The rotor flux reference frame is used for both systems. The first is an indirect strategy for impressed stator current control, and the second a direct strategy for impressed stator voltage control. Both were modelled using the dynamic analysis package "SIMULINK". The response of a 37.5 kW induction motor for step load and speed changes is shown.<>