STABILITY CONTROL METHOD FOR PERMANENT MAGNET ASSISTED SYNCHRONOUS RELUCTANCE ELECTRIC MOTOR

WIPO Patent Application WO/2022/134787

A1

Provided is a stability control method for a permanent magnet assisted synchronous reluctance electric motor. On the basis of an original vector control method for a permanent magnet assisted synchronous reluctance electric motor, a voltage q-axis active damping compensation method, a voltage d-axis active damping compensation method, a current q-axis active damping compensation method, a current d-axis active damping compensation method, a torque active damping compensation method and a modulation change method are used, so as to solve the technical problem of bus oscillation of an urban rail permanent magnet assisted synchronous reluctance traction system, thereby improving the stability of an urban rail permanent magnet traction system under the control of the original vector control method; and the hardware cost of the system is not increased while the stability of the system is realized. The method is more flexible and has a wider application range.

ZHANG RUIFENG (CN)
WANG LI (CN)
DING ZHIYONG (CN)
ZHAN ZHEJUN (CN)
YU SENLIN (CN)
XI DAIQI (CN)

PCT/CN2021/124774

June 30, 2022

October 19, 2021

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CRRC YONGJI ELECTRIC CO LTD (CN)

H02P21/22; H02P21/05; H02P25/024; H02P25/08; H02P25/098; H02P27/08

CN112737457A	2021-04-30
CN108923721A	2018-11-30
US20050264255A1	2005-12-01
CN110855202A	2020-02-28
US20160359423A1	2016-12-08

ZHANG RUIFENG, ET AL.: "Research on DC-link Oscillation Suppression Method of Permanent Magnet System Based on Voltage Compensation", POWER ELECTRONICS, ZHONGGUO DIANGONG JISHU XUEHUI DIANLI DIANZI XUEHUI, CN, vol. 54, no. 11, 30 November 2020 (2020-11-30), CN , pages 1 - 4, XP055945795, ISSN: 1000-100X

CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)

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