异步电机的Γ型电路分析和改进型U-N模型设计

Analysis of Γ Circuit and Design of Improved U-N Model for Induction Motor

文章分析了异步电机Γ型电路的数学模型、极点分布和反馈矩阵的设计,采用了全阶磁链观测器模型观测定/转子磁链,对比了全阶磁链观测器模型和U-N模型,并结合两者优点得到了定/转子磁链同步补偿的改进型U-N模型。Matlab仿真结果表明,改进型模型具有良好的精度和鲁棒性,可适应于各种高性能的电机控制平台。

The math model, poles distribution, and feedback matrix design of induction motor circuit are analyzed. The full order flux observer was applied to obtain stator/rotor flux, and then was compared to U-N model. An improved U-N model has been adopted, which has advantages of the referred two models and can compensate stator/rotor flux respectively. The simulation results indicate that the improved model is precise and robust, and can be applied to different motor control platforms with high performances.