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Stator winding fault detection in induction motor drives using signal injection

机译:使用信号注入检测感应电动机驱动器中的定子绕组故障

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A stator winding turn fault diagnosis strategy in induction motor (IM) drives is proposed in the present work. This strategy is based on the effects of the inductance variations coming from fault, over zero-sequence voltage. This voltage is measured when a predefined inverter-switching pattern is applied, allowing then decoupling the strategy from the motor fundamental excitation. For the evaluation of the feasibility of this proposal, a multiple-coupled circuit model of the IM is used. Experimental results are included to show the ability of the proposed strategy for detecting incipient faults, including a low number of short-circuited turns.
机译:在当前工作中,提出了感应电动机(IM)驱动器中的定子绕组匝间故障诊断策略。该策略基于故障引起的电感变化(在零序电压上)的影响。当施加预定义的逆变器开关模式时,将测量该电压,然后允许将策略与电机基本励磁去耦。为了评估该建议的可行性,使用了IM的多耦合电路模型。实验结果包括在内,以显示所提出的策略检测早期故障(包括短路匝数少)的能力。

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