湖南电力 ›› 2023, Vol. 43 ›› Issue (5): 116-120.doi: 10.3969/j.issn.1008- 0198.2023.05.017

• 新技术及应用 • 上一篇    下一篇

基于18相风力发电系统容错控制策略研究

周诗嘉1, 黄守道2, 荣飞2, 杨光源3, 辛清明1   

  1. 1.南方电网科学研究院有限责任公司,广东 广州 510080;
    2.湖南大学电气与信息工程学院,湖南 长沙 410082;
    3.南方电网超高压输电公司检修试验中心,广东 广州 510663
  • 收稿日期:2023-08-01 修回日期:2023-09-22 出版日期:2023-10-25 发布日期:2023-11-03
  • 作者简介:周诗嘉(1991),女,工学博士,工程师,通信作者,主要研究方向为高压直流输电系统研究与成套设计、新能源发电技术。
  • 基金资助:
    湖南省自然科学基金项目(2021JJ30120);南方电网科技项目 (ZBKJXM20180560)

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

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

  1. 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

摘要: 针对一种18相风力发电系统的绕组结构特点,对多相风机的故障工况进行了分析,多相电机系统可能出现的故障可以直接看作开路故障,等效为电机的缺相运行。通过分析机侧、网侧能量传输机理,对系统中绕组开路及变流模块故障后的三相不控整流器的输出电流参考值进行重新整定,提出相应的容错控制方法。最后,通过仿真对变流模块故障的电流重分配控制策略及直流短路故障控制策略的有效性进行了验证。

关键词: 容错控制策略, 多相风机, 缺相故障, 电机故障

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

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