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首页> 外文期刊>International Journal of Electrical Engineering Education >Detection of stator-winding turn-to-turn faults in induction motors, based on virtual instrumentation
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Detection of stator-winding turn-to-turn faults in induction motors, based on virtual instrumentation

机译：基于虚拟仪器的感应电动机定子绕组匝间故障检测

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摘要

A virtual instrumentation system for stator turn-to-turn winding-fault detection is presented in this paper. The system can be adopted for industry and academy as a useful tool to prevent unexpected downtime or severe damage to induction motors. The high-frequency carrier-signal injection technique is used to obtain information on machine stator winding. Measurements of the resulting negative-sequence current are used to detect turn-to-turn faults. Since the stator windings are fixed in space, a turn-to-turn fault gives rise to a stationary saliency which appears as a DC component in the spectrum of the negative-sequence carrier-signal current. The proposed virtual instrument shows the relationship of the magnitude of the DC component to the grade of failure of the stator winding.
机译：本文提出了一种用于定子匝间绕组故障检测的虚拟仪器系统。该系统可作为工业和学术机构的有用工具，用于防止意外停机或严重损坏感应电动机。高频载波信号注入技术用于获得有关电机定子绕组的信息。所产生的负序电流的测量值用于检测匝间故障。由于定子绕组在空间中固定，因此匝间故障会引起静态凸显，该凸显在负序载波信号电流频谱中显示为直流分量。拟议的虚拟仪器显示了直流分量的大小与定子绕组故障等级的关系。

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