二次抵抗変動を考慮した誘導機のスライディングモードによる位置決め制御

概要

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Sliding mode control based on the Variable Structure System (VSS) has some features. In motor control applications, this control method shows high-speed dynamic responses with no overshoot and no steady-state error. Furthermore this method shows the high robustness against the external load disturbance and the motor parameter variations. This paper presents a position control system of three-phase squirrel cage induction motor using a vector control system together with the sliding mode control system. Since a secondary resistance variation of the induction motor causes deterioration of the torque control performance in a slip frequency type vector control system, the field orientation type vector control system based on the desensitized flux observer was employed in this study. The whole system was simulated, and the robustness of this system to the variations of the inertia moment, the load torque, and the secondary resistance was discussed. Consequently, the validity of this position control system was verified.
明治大学の論文