MOTOR ROTOR WINDING STATE DETECTION SYSTEM AND METHOD

WIPO Patent Application WO/2023/159770

A1

A motor rotor winding state detection method, comprising: obtaining a first working current value of a rotor winding of a first motor, and a first working load corresponding to the first working current value; fitting the first working current value and the first working load to obtain a first fitted curve; obtaining a real-time load and a real-time current value of the first motor, and calculating a first predicted current value of the first motor according to the real-time load and the first fitted curve; and monitoring the rotor winding state of the first motor according to the real-time current value and the first predicted current value, and when the ratio between the real-time current value and the first predicted current value is greater than the maximum value of a preset range interval, determining that an interturn short circuit occurs in the rotor winding of the first motor.

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ZHANG XUEFENG (CN)
LI HUIJUN (CN)
HAN ZHONGZHEN (CN)
YANG RUI (CN)
ZHAO LEISHENG (CN)
PAN LEHONG (CN)
CAO SHAOFEI (CN)
LIANG YONGJI (CN)
YANG DAMAO (CN)
WANG ZHUO (CN)

PCT/CN2022/091036

August 31, 2023

May 05, 2022

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HUANENG TONGCHUAN ZHAOJIN COAL POWER CO LTD (CN)

G01R31/52

CN114578269A	2022-06-03
CN113740764A	2021-12-03
CN102135600A	2011-07-27
CN110716152A	2020-01-21
US20160149527A1	2016-05-26

TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)

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