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Induction motors thermal monitoring by means of rotor resistance identification

机译:通过转子电阻识别对感应电动机进行热监控

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摘要

Rotor and stator temperature are of concern in both short-term machine protection and in longer term condition monitoring for large induction machines. Especially, when operating with overload cycles, it is necessary to monitor rotor bars and stator winding temperatures to make sure that the temperature remains below prescribed limits. The purpose of this paper is to present a thermal monitoring technique, for induction motors steady-state operation, based on the rotor resistance identification. Experimental results, for a 4 kW four-pole squirrel cage induction motor, show the industrial viability of the proposed technique.
机译:大型电机的短期保护和长期状态监测都需要考虑转子和定子的温度。特别是在以过载周期运行时,有必要监视转子棒和定子绕组温度,以确保温度保持在规定的极限以下。本文的目的是提出一种基于转子电阻识别的用于异步电动机稳态运行的热监测技术。对于4 kW四极鼠笼式感应电动机,实验结果表明了该技术的工业可行性。

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