A Fully Digitalized Speed Regulator using Multimicroprocessor System for Induction Motor Drives

A fully digitalized speed regulator is proposed which executes all regulatory processing by using a multimicroprocessor. The hardware configuration of the regulator is standardized. A vector control algorithm is used to perform fast response speed control of an induction motor. Microprocessors execute a PWM gate pulse generation and current component detection in addition to speed control processing. In applications of the regulator to a 1.5-kW induction motor drive system, Its effectiveness is confirmed.