Adaptive Vector Control of Servo Induction Motors

Abstract

This paper presents a new adaptive vector control scheme for inverter-fed induction motors. The scheme proposes new system structure consisting of two subsystems for adaptive vector control, a vector control system realized on synchronous frame and a parameter identification system on stationary frame. Proposed adaptive identification system can perform in different rate from that of the control system, which adaptively identifies motor parameters varying dynamically with temperature and magnetic saturation and determines critical parameters of vector control system. The high performance of the proposed scheme verified by a real drive system is also shown.