Title:
FAULT-TOLERANT CONTROL METHOD AND APPARATUS FOR OPEN-CIRCUIT FAULTS OF ALTERNATING-CURRENT MOTOR, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/041208
Kind Code:
A1
Abstract:
The present invention relates to the field of motor control, in particular to a fault-tolerant control method and apparatus for open-circuit faults of an alternating-current motor, a computer device and a computer storage medium. The fault-tolerant control method comprises: A, in consideration of a condition that quadrature-axis current and direct-axis current of a motor change along with the motor rotor electrical angle, constructing a fault-tolerant control optimization model, the fault-tolerant control optimization model comprising a cost equation generated on the basis of a motor torque equation and a limiting condition consisting of one or more of a fault phase current equation, a motor phase current limiting equation and a motor phase voltage limiting equation; and B, by using the fault-tolerant control optimization model, determining a phase current reference value at a current motor rotor electrical angle.
Inventors:
XIA ZEKUN (CN)
LIU CHANG (CN)
WANG KAI (CN)
LIU CHANG (CN)
WANG KAI (CN)
Application Number:
PCT/CN2023/104870
Publication Date:
February 29, 2024
Filing Date:
June 30, 2023
Export Citation:
Assignee:
XPT EDS HEFEI CO LTD (CN)
International Classes:
H02P29/028; H02M1/088; H02P27/06; H02P29/024
Domestic Patent References:
| WO2019136784A1 | 2019-07-18 |
Foreign References:
| CN115347849A | 2022-11-15 | |||
| CN112332735A | 2021-02-05 | |||
| CN113872482A | 2021-12-31 | |||
| US20210384863A1 | 2021-12-09 |
Other References:
YU WENTAO, HU YUWEN, HAO ZHENYANG, HUANG WENXIN, XU SHUN: "Experimental Study on Optimal Torque Control of Fault Tolerant Permanent Magnet Motor", ACTA AERONAUTICA ET ASTRONAUTICA SINICA., vol. 31, no. 8, 1 August 2010 (2010-08-01), pages 1622 - 1628, XP093144584, DOI: 1000-6893(2010)08-1622-07
BOWEN CUI, ZHANG REN: "Fault Detection and Isolation of Inverter Based on FFT and Neural Network", TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY., vol. 21, no. 7, 1 July 2006 (2006-07-01), pages 37 - 43, XP093144592, DOI: 10.19595/j.cnki.1000-6753.tces.2006.07.008
BOWEN CUI, ZHANG REN: "Fault Detection and Isolation of Inverter Based on FFT and Neural Network", TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY., vol. 21, no. 7, 1 July 2006 (2006-07-01), pages 37 - 43, XP093144592, DOI: 10.19595/j.cnki.1000-6753.tces.2006.07.008
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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