Method for checking out-of-step of synchronous motor

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United States of America Patent

PATENT NO 9887647
SERIAL NO

14039984

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Abstract

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A method for checking an out-of-step of a synchronous motor includes detecting three-phase currents of the synchronous motor; determining whether a relationship between the three-phase currents satisfies a preset requirement; and if no, determining that the synchronous motor is out of step. It is determined that the synchronous motor is out of step when amplitudes of each current of the three-phase currents are not equal or when the phase difference between the three-phase currents is not 120°.

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Patent OwnerAddress
BYD COMPANY LIMITEDSHENZHEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xing Guangdong, CN 193 4664
Cheng, Lipin Guangdong, CN 3 11
Du, Zhiyong Guangdong, CN 21 62
Luo, Hui Guangdong, CN 178 2956
Yang, Taotao Guangdong, CN 3 25
Zhang, Xinxin Guangdong, CN 80 220
Zhou, Xuguang Guangdong, CN 17 191

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