Title:
SHORT-CIRCUIT FAULT-TOLERANT CONTROL METHOD FOR SINUSOIDAL OR TRAPEZOIDAL COUNTER-POTENTIAL FIVE-PHASE PERMANENT MAGNET MOTOR USING DEADBEAT CURRENT TRACKING
Document Type and Number:
WIPO Patent Application WO/2022/088391
Kind Code:
A1
Abstract:
A short-circuit fault-tolerant control method for a sinusoidal or trapezoidal counter-potential five-phase permanent magnet motor using deadbeat current tracking. The method fully utilizes the third harmonic space of the five-phase permanent magnet motor in a fault state, and the fault-tolerant control strategy for a five-phase permanent magnet motor with a sinusoidal counter-potential and a trapezoidal counter-potential in the case of a single-phase short-circuit fault is presented, so that the five-phase permanent magnet motor can fully utilize the third harmonic space thereof in a fault-tolerant operation. The method improves the performance of the motor to produce an output torque in the fault state, and improves the efficiency of fault-tolerant operation of the motor, so that the motor can have better fault-tolerant performance and dynamic response. Moreover, the speed regulation range of the motor fault-tolerant operation is widened, so that the motor can be better applicable in the application field of electric vehicles that require high reliability and a wide speed regulation range. Compared with the current hysteresis modulation method used in the conventional fault-tolerant algorithm, the switching loss of the inverter is reduced.
Inventors:
CHEN QIAN (CN)
XIA YUHANG (CN)
GU LICHENG (CN)
ZHAO WENXIANG (CN)
LIU GUOHAI (CN)
XIA YUHANG (CN)
GU LICHENG (CN)
ZHAO WENXIANG (CN)
LIU GUOHAI (CN)
Application Number:
PCT/CN2020/134230
Publication Date:
May 05, 2022
Filing Date:
December 07, 2020
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
H02P21/00; H02P29/028
Foreign References:
| CN105958896A | 2016-09-21 | |||
| CN104682807A | 2015-06-03 | |||
| CN108964547A | 2018-12-07 | |||
| CN109347386A | 2019-02-15 | |||
| CN110518859A | 2019-11-29 | |||
| CN107276492A | 2017-10-20 | |||
| US20170047728A1 | 2017-02-16 | |||
| US20120313564A1 | 2012-12-13 |
Attorney, Agent or Firm:
NANJING IPZHI INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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