Abstract
With the production line testing requirement of the micro-motor rotor which is less than 10mm in diameter, an improved rotor detection method based on the pulse test method was presented for the rotor fault detection. This paper analyzed the operating principle of the method and simulated on the Matlab platform. Moreover, the rotor detection system centered on the DSP processor was designed to detect the rotor fault. The result showed that the method could quickly and accurately detect the inter-turn short circuit fault and determine the deep of short circuit. The degree of detection is up to 4% level, which meets the actual production testing requirement.
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