摘要
本文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，提出了一种基于卡尔曼滤波器的转子时间常数的辨识补偿方法。该方法具有较高的精度，借助于高速数字信号处理器（ＤＳＰ）可以实现实时补偿控制。仿真结果证明该方法是有效可行的。
In an induction motor field orientation vector control system,the rotor time constant may be deviated due to motor temperature variation and flux saturation.This deviation may result in a failure of field orientation and deterioration of motor performance.In the paper a rotor time constant estimation technique for the purpose of updating compensation control using an Reduced order Kalman filter is proposed.The algorithm has high accuracy,and can be carried out by utilizing high speed digital signal processor(DSP). Simulation results demonstrate that the Kalman filter is capable of estimating the rotor time constant while the rotor speed is either constant or varying.
出处
《电工电能新技术》
CSCD
1999年第2期49-53,共5页
Advanced Technology of Electrical Engineering and Energy
关键词
异步电机
转子
时间常数
矢量控制
实时补偿
field orientation,time constant,Kalman filter,updating compensation
