Inductance detection method of reluctance motor and motor detection device

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United States of America Patent

PATENT NO 11933849
APP PUB NO 20230228819A1
SERIAL NO

17748963

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Abstract

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The present disclosure provides an inductance detection method includes steps of: (a) acquiring a stator resistance of the reluctance motor; (b) injecting a high-frequency sinusoidal signal in the d-axis or q-axis direction; (c) injecting an align signal command in the q-axis or d-axis direction; (d) receiving a dq-axes signal generated through injecting the high-frequency sinusoidal signal and the align signal command; (e) sampling a motor feedback signal generated through receiving the dq-axes signal; (f) in the direction of injecting the high-frequency sinusoidal signal, calculating an amplitude difference between the high-frequency sinusoidal signal and the motor feedback signal, and adjusting an amplitude of the high-frequency sinusoidal signal according to the amplitude difference for regulating a feedback amplitude of the motor feedback signal; and (g) when the feedback amplitude reaching an expected amplitude, calculating an apparent inductance of the reluctance motor based on the dq-axes signal, the motor feedback signal and the stator resistance.

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Patent Owner(s)

Patent OwnerAddress
DELTA ELECTRONICS INCNO 252 SHANYING RD GUISHAN DIST TAOYUAN CITY 333

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Ming-Tsung Taoyuan, TW 112 294
Hsieh, Tung-Chin Taoyuan, TW 3 39
Lin, Yu-Shian Taoyuan, TW 9 16

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