In an induction motor field orientation vector control system, the rotor time constant may be deviated due to motor temperature variation and flux saturation.
本文在异步电动机矢量控制系统中提出了一种基于转子磁场定向的转子电阻自适应辨识方法。
By extending the MRAS theory to parameter estimation, a new online estimation method for the rotor time-constant based on MRAS was presented in this paper.
本文还把MRAS方法推广到参数在线辨识上来，提出了基于MRAS的转子时间常数在线辨识新方法。
Simulations show that the proposed observer can track rotor flux vector in a large speed range and be robust to the variable rotor time constant.
仿真结果表明该转子磁链观测器可以在较大速度范围内跟踪转子磁链矢量的变化，同时对变化较大的转子时间常数具有一定的鲁棒性。
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