Research on Fault-Tolerant Control Strategy for 18-Phase Wind Power Generation System

doi:10.3969/j.issn.1008- 0198.2023.05.017

Hunan Electric Power ›› 2023, Vol. 43 ›› Issue (5): 116-120.doi: 10.3969/j.issn.1008- 0198.2023.05.017

• New technology and Application • Previous Articles Next Articles

Research on Fault-Tolerant Control Strategy for 18-Phase Wind Power Generation System

ZHOU Shijia¹, HUANG Shoudao², RONG Fei², YANG Guangyuan³, XIN Qingming¹

1. China Southern Power Grid Research Institute Co.,Ltd., Guangzhou 510080, China;
2. College of Electrical and Information Engineering,Hunan University,Changsha 410082,China;
3. Maintenance & Test Center of China southern power grid EHV Power Transmission Company, Guangzhou 510663, China

Received:2023-08-01 Revised:2023-09-22 Online:2023-10-25 Published:2023-11-03

Abstract

Abstract: Based on the winding structure characteristics of an 18 phase wind power generation system, the fault conditions of a multi-phase wind turbine are analyzed. The faults that may occur in the multi-phase motor system can be directly regarded as open circuit faults, equivalent to the phase loss operation of the motor. By analyzing the mechanism of energy transmission on the grid side and the machine side, the reference value of the output current of the three-phase uncontrolled rectifier after winding open circuit and converter module fault in the system has been readjusted, and corresponding fault-tolerant control methods have been proposed. Finally, the effectiveness of the current redistribution control strategy for converter module faults and the DC short circuit fault control strategy is verified through simulation.

Key words: fault-tolerant control strategy, multi-phase wind turbine, phase loss fault, wind power generator fault

CLC Number:

TM614

ZHOU Shijia, HUANG Shoudao, RONG Fei, YANG Guangyuan, XIN Qingming. Research on Fault-Tolerant Control Strategy for 18-Phase Wind Power Generation System[J]. Hunan Electric Power, 2023, 43(5): 116-120.

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Research on Fault-Tolerant Control Strategy for 18-Phase Wind Power Generation System

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