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Implementation of a closed loop sliding mode observer for speed sensorless control of an indirect field oriented induction motor drives

机译:闭环滑模观测器的实现,用于间接磁场定向感应电动机驱动器的无速度传感器控制

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摘要

A new sliding mode flux and speed observer is proposed for indirect field oriented induction motor drive system. The error between the actual and observed currents converges to zero, which guarantees the accuracy of the flux observer. The rotor speed and the rotor time constant are estimated based on the estimated sta-tor currents and rotor flux. The estimated rotor time constant is used in slip calculation and observer structures. The estimated speed is used as feedback to the speed regulation. Simulation and experimental results of the speed control verify the validity of the proposed speed estimation algorithm.
机译:提出了一种新的滑模磁通和速度观测器,用于间接磁场定向感应电动机驱动系统。实际电流和观察到的电流之间的误差收敛到零,这保证了磁通观测器的准确性。基于估算的定子电流和转子磁通,估算转子速度和转子时间常数。估计的转子时间常数用于转差计算和观测器结构中。估计的速度用作速度调节的反馈。速度控制的仿真和实验结果验证了所提速度估计算法的有效性。

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