三相誘導電動機のスライディングモードによる位置決め制御

概要

論文の詳細を見る
Sliding mode control based on Variable Structure System (VSS) is an adaptive control method. This control method gives a dynamic response with no overshoot and high robustness, i.e. insensitive to parameter variations and external load disturbance. This paper presents a position control system of three-phase squirrel cage induction motor with sliding mode and verifies the validity for this system by the digital simulation results. This system has a vector control system with a simplified current control method in the inner loop, and the whole system is practically controlled by a high-speed digital signal processor. In order to simulate the sliding mode control system, the state equation of the system was used, and then the sliding lines were set up. Finally the gain constants of the sliding mode controller were determined in accordance with the condition for the sliding mode to exist. Position responses for the load torque and the inertia moment variations of induction motor were obtained by the simulation using these gain constants. According to these results, the position responses reached the steady state in about l[s] and exhibited no overshoot. Further, the existence of sliding mode was clearly confirmed in the phase plane trajectory.
明治大学の論文