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首页> 外文期刊>World Journal of Engineering and Technology >The Detection of Inter-Turn Short Circuits in the Stator Windings of Sensorless Operating Induction Motors
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The Detection of Inter-Turn Short Circuits in the Stator Windings of Sensorless Operating Induction Motors

机译：无传感器操作感应电动机定子绕组中的转弯短路的检测

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摘要

This work proposes an alternative strategy to the use of a speed sensor in the implementation of active and reactive power based model reference adaptive system (PQ-MRAS) estimator in order to calculate the rotor and stator resistances of an induction motor (IM) and the use of these parameters for the detection of inter-turn short circuits (ITSC) faults in the stator of this?motor. The rotor and stator resistance estimation part of the IM is performed?by the PQ-MRAS method in which the rotor angular velocity is reconstructed from the interconnected high gain observer (IHGO). The ITSC fault detection part is done by the derivation of stator resistance estimated by the PQ- MRAS estimator. In addition to the speed sensorless detection of ITSC?faults of the IM, an approach to determine the number of shorted turns based on the difference between the phase current of the healthy and faulty machine is proposed. Simulation results obtained from the MATLAB/Simulink platform have shown that the PQ-MRAS estimator using an interconnected high- gain observer gives very similar results to those using the speed sensor. The estimation errors in the cases of speed variation and load torque are al mos t identical. Variations in stator and rotor resistances influence the per formance of the observer and lead to poor estimation of the rotor resistance. The results of ITSC fault detection using IHGO are very similar to the results in the literature using the same diagnostic approach with a speed sensor.
机译：这项工作提出了在实现主动和无功基于基于模型参考自适应系统（PQ-MRAS）估计器的实现中使用速度传感器的替代策略，以便计算感应电动机（IM）的转子和定子电阻。使用这些参数在该参数检测该参数在该定子中的转弯短路（ITSC）故障？电动机。通过从互连的高增益观测器（IHGO）重建转子角速度的PQ-MRAS方法进行IM的转子和定子电阻估计部分。 ITSC​​故障检测部通过PQ-MRAS估计估计的定子电阻的推导来完成。除了ITSC的速度无传感器检测之外，提出了一种基于健康和故障机器的相电流的差异来确定短路匝数的方法。从MATLAB / SIMULINK平台获得的仿真结果表明，使用互连的高增益观测器的PQ-MRAS估计器对使用速度传感器的那些产生非常相似的结果。速度变化和负载扭矩情况下的估计误差是Al MOS T相同。定子和转子电阻的变化影响了观测器的每个浆料，并导致转子电阻的差异差。使用IHGO的ITSC故障检测结果与使用相同的诊断方法具有速度传感器的文献的结果非常相似。

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