【摘要】 感应电机转子时间常数的准确获取,对基于电流模型的间接转子磁场定向控制系统至关重要。针对电机运行过程中转子时间常数易发生变化的问题,本文以磁场定向准确时转子磁链t轴分量为0作参考,用构造的稳态转子磁链与之比较,提出了一种在线校正转子时间常数的方法。并在Matlab/Simulink平台对该方法进行仿真研究,结果证明了该方法的有效性。更多还原

【Abstract】 It is important for indirect rotor field-oriented control system based on the current model to get accurate rotor time constant of induction motor. Rotor time constant changes easily when the motor is running. Therefore,in this paper,the author used the conclusion that when the magnetic field orientation is accurate,the rotor flux t-axis component is 0 as the reference,proposed a method of online correction for the rotor time constant using steady rotor flux. Besides,the method was proved effective by simulation on matlab / simulink platform.更多还原