슬라이딩모드 적응 자속관측기를 이용한 불확실성을 갖는 유도전동기의 적응 백스테핑제어

Abstract

In this paper, a combines field orientation and adaptive backstepping approach using a sliding mode adaptive flux observer, is proposed for the control of induction motor. In order to achieve the speed regulation with the consideration of improving power efficiency, rotor angular speed and flux amplitude tracking objectives are formulated. Totor flux and inverse time constant are estimated by the sliding mode adaptive flux observer based on a fixed stator frame model and mechanical lumped uncertainty such as inertia moment, load torque disturbance, friction compensated by the adaptive backstepping based on a field-oriented model. Simulation results are provided to verify the effectiveness of the proposed approach.