METHOD FOR CHECKING OUT-OF-STEP OF SYNCHRONOUS MOTOR

World Intellectual Property Organization Patent

APP PUB NO WO-2014048284-A1
SERIAL NO

PCTCN2013083977

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Abstract

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A method for checking an out-of-step of a synchronous motor includes: detecting electric degrees of the synchronous motor, in which the electric degrees comprise at least a first electric degree and a second electric degree detected at a preset interval, and the second electric degree is detected after the first electric degree; comparing the first electric degree with the second electric degree to obtain a comparing result; and determining that the synchronous motor is out of step when the comparing result satisfies a preset requirement. It is determined that the synchronous motor is out of step when the electric degree keeps unchanged or decreases progressively, or an increment of the electric degree is very small.

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Patent Owner(s)

Patent OwnerAddress
SHENZHEN BYD AUTO R & D CO LTDCN

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Inventor(s)

Inventor Name Address
CHEN XING BEIJING 100176
LUO HUI 471000 NO 25 KAIXUAN WEST ROAD XIGONG DISTRICT LUOYANG CITY HENAN PROVINCE LUOYANG CITY HENAN PROVINCE 471000
XIAO KAI 610041 37 GUOXUE ROAD CHENGDU SICHUAN WUHOU DISTRICT CHENGDU CITY SICHUAN PROVINCE 610041
DU ZHIYONG 201203 11F NO 2 BUILDING 560 LANE MIDSUMMER ROAD PUDONG NEW AREA SHANGHAI SHANGHAI CITY SHANGHAI CITY 201203
ZHANG XINXIN NINGDE FUJIAN 352100
ZHOU XUGUANG SHENZHEN GUANGDONG 518118
CHENG LIPIN NO 2266 CHAOYANG SOUTH STREET LIANCHI DISTRICT BAODING CITY HEBEI PROVINCE BAODING CITY HEBEI PROVINCE 071000

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