发电技术 ›› 2022, Vol. 43 ›› Issue (1): 111-118.DOI: 10.12096/j.2096-4528.pgt.20033

• 新能源 • 上一篇    下一篇

永磁型风机海上风电送出系统甩负荷故障暂时过电压影响因素分析

杨大业1, 项祖涛1, 罗煦之2, 宋瑞华1, 陈麒宇1, 沈琳1, 王晓彤1   

  1. 1.中国电力科学研究院有限公司, 北京市 海淀区 100192
    2.电力规划设计总院, 北京市 西城区 100032
  • 收稿日期:2021-04-06 出版日期:2022-02-28 发布日期:2022-03-18
  • 作者简介:杨大业(1984),男,硕士,高级工程师,研究方向为新能源并网仿真、输变电工程电磁暂态研究,yangdaye@epri.sgcc.com. cn
    项祖涛(1976),男,博士,教授级高级工程师,研究方向为电力系统分析和电磁暂态仿真,xzt@epri.sgcc.com.cn
    罗煦之(1984),男,硕士,高级工程师,研究方向为电力系统规划与设计,xzluo@eppei.com
    宋瑞华(1972),男,博士,教授级高级工程师,研究方向为电力系统分析和电磁暂态仿真,songrh@epri.sgcc.com.cn
    陈麒宇(1986),男,博士,高级工程师,研究方向为含新能源电力系统分析、电力系统规划,chenqiyu@epri.sgcc.com.cn
    沈琳(1987),女,硕士,工程师,研究方向为电力系统分析和电磁暂态仿真, shenlin@epri.sgcc.com.cn
    王晓彤(1972),女,博士,教授级高级工程师,研究方向为电力系统分析和电磁暂态仿真,wangxt@epri.sgcc.com.cn
  • 基金资助:
    国家自然科学基金项目(U1766202)

Analysis on Influence Factors of Temporary Overvoltage of Load Rejection Fault of Offshore Wind Power Transmission System of Permanent Magnet Synchronous Generator

Daye YANG1, Zutao XIANG1, Xuzhi LUO2, Ruihua SONG1, Qiyu CHEN1, Lin SHEN1, Xiaotong WANG1   

  1. 1.China Electric Power Research Institute, Haidian District, Beijing 100192, China
    2.China Electric Power Planning and Engineering Institute, Xicheng District, Beijing 100032, China
  • Received:2021-04-06 Published:2022-02-28 Online:2022-03-18
  • Supported by:
    National Natural Science Foundation of China(U1766202)

摘要:

为评估永磁型风机风电送出线路发生甩负荷情况下系统暂时过电压水平,需明确故障发生后系统暂时过电压特性及其影响因素。通过对永磁型风机控制保护策略的数学分析,得知风电机组直流母线电压额定值、网侧变流器调制比、直流母线过电压保护定值和风电机组过电压保护定值及其动作策略为系统暂时过电压主要影响因素。另外,送出系统无功补偿类型、配置方式等也是系统暂时过电压影响因素。采用电磁暂态仿真软件PSCAD/EMTDC对上述影响因素进行了验证,结果表明,风电机组设计中应考虑其对系统暂时过电压的影响,系统暂时过电压计算中需要重点考虑风机的相关控制保护策略。

关键词: 海上风电, 永磁型风机, 暂时过电压, 控制保护策略, 无功补偿

Abstract:

In order to evaluate the temporary overvoltage level of the wind power transmission system based on permanent magnet synchronous generator (PMSG) in case of load rejection, it is necessary to clarify the temporary overvoltage characteristics and its influencing factors after the fault. According to the mathematical analysis of the control and protection strategies of PMSG-based wind turbine, it was known that the DC bus rated voltage of the wind turbine, the modulation ratio of the grid side converter (GSC), the DC bus overvoltage protection setting, the wind turbine overvoltage protection setting and its action strategy were the main factors affecting the temporary overvoltage of the system. In addition, the type of reactive power compensation and configuration were also the factors influencing the temporary overvoltage of the system. PSCAD/EMTDC was used to verify the above factors. The results show that the relative control and protection strategies of PMSG-based wind turbine should be considered in wind turbine design and the calculation of the temporary overvoltage for wind farm.

Key words: offshore wind power, permanent magnet synchronous generator (PMSG), temporary overvoltage, control and protection strategy, reactive compensation

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