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Simple mechanical parameters identification of induction machine using voltage sensor only

机译:仅使用电压传感器即可轻松识别感应电机的机械参数

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摘要

A simple low cost algorithm for induction motor mechanical parameters estimation without speed sensor is presented in this paper. Estimation is carried out by recording stator terminal voltage during natural braking and subsequent offline curve fitting. The algorithm allows accurately reconstructing mechanical time constant as well as loading torque speed dependency. Although the mathematical basis of the presented method is developed for wound rotor motors, it is shown to be suitable for squirrel cage motors as well. The algorithm is first tested by reconstruction of simulation model parameters and then by processing measurement results of several motors. Simulation and experimental results support the validity of the proposed algorithm.
机译:本文提出了一种简单的低成本的无速度传感器的异步电动机机械参数估计算法。通过记录自然制动期间的定子端子电压以及随后的离线曲线拟合来进行估算。该算法允许准确地重建机械时间常数以及负载扭矩速度相关性。尽管提出的方法的数学基础是为绕线转子电动机开发的,但事实证明它也适用于鼠笼电动机。首先通过重建仿真模型参数然后通过处理几个电动机的测量结果来测试该算法。仿真和实验结果证明了该算法的有效性。

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