Design of Optimal Gains on Microprocessor-Based Voltage Source Inverter-Induction Motor System

마이크로프로세서에 의한 전압형 인버터-유도전동기 시스템의 최적이득 설계

This paper is concerned with the design of the optimal gains of the controller in the speed control system for the induction motor controlled by the microprocessor. The system is modelled with the discrete-time state equation, considering the time delay, for the facility of the optimization techniques. Introducing the conjugate gradient descent method, as the optimization technique, are derived the optimal gains, the gains which give the best transient characteristics. At the optimal gains obtained, the theoretcal transient responses are verified by experimental ones on a 5HP induction motor drive system.