矢量控制异步电机转子时间常数辨识研究

针对转子磁场定向异步电机矢量控制系统中转子时间常数易受温度和磁饱和影响而偏离其最初值,从而导致磁场定向失败,电机动静态特性变坏的现象,提出了一种基于静止坐标系下电机模型的转子时间常数辨识方法。它只用到电机的可测量变量,实现简单。仿真结果证明该算法是有效可行的。

Study of Rotor Time Constant For Induction Motor Vector Control

The rotor time constant may be deviated due to motor temperature variation and flux saturation in an induction motor field orientation vector control system.The deviation may result in a failure of field orientation and deterioration of motor performance.In the paper a scheme for estimation of rotor time constant using the motor model in the stationary reference frame and measurements of accessible motor varibles.The method is easy to implement.Simulation results demonstrate that the arithemetic is efficient and feasible.