上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (6): 798-805.doi: 10.16183/j.cnki.jsjtu.2022.476

• 新型电力系统与综合能源 • 上一篇    下一篇

计及尾流效应的风电场短路故障动态等值建模

余浩1, 黎灿兵2(), 叶志亮2, 彭穗1, 任万鑫1, 陈思捷2, 唐彬伟3, 陈达伟2   

  1. 1.广东电网有限责任公司 电网规划研究中心, 广州 510080
    2.上海交通大学 电子信息与电气工程学院, 上海 200240
    3.明阳智慧能源集团股份公司, 广东 中山 528437
  • 收稿日期:2022-11-25 修回日期:2023-05-29 接受日期:2023-07-31 出版日期:2024-06-28 发布日期:2024-07-05
  • 通讯作者: 黎灿兵,教授,博士生导师;E-mail: licanbing@sjtu.edu.cn.
  • 作者简介:余浩(1986-),高级工程师,从事电网规划、系统仿真及新能源并网技术研究.
  • 基金资助:
    国家自然科学基金(51977062)

Dynamic Equivalence Modeling of Short-Circuit Faults in Wind Farms Considering Wake Effects

YU Hao1, LI Canbing2(), YE Zhiliang2, PENG Sui1, REN Wanxin1, CHEN Sijie2, TANG Binwei3, CHEN Dawei2   

  1. 1. Power Grid Planning and Research Center, Guangdong Power Grid Co., Ltd., Guangzhou 510080, China
    2. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    3. Mingyang Smart Energy Group Co., Ltd., Zhongshan 528437, Guangdong, China
  • Received:2022-11-25 Revised:2023-05-29 Accepted:2023-07-31 Online:2024-06-28 Published:2024-07-05

摘要:

快速、准确分析大型风电场短路特性具有重要的工程应用价值,而尾流效应影响下风电场各机组短路特性差异大,需建立风电场短路故障时等值模型.提出一种考虑尾流效应影响的风电场短路故障动态等值方法,首先定义尾流效应因子反映机组受尾流效应影响程度,并采用尾流效应因子作为分组依据,缩小尾流效应影响下组内各机组运行状态差异性.为提高非对称短路故障下的等值模型有效性,分析风电场短路时正、负、零三序网络的构成,提出适用于零序集电网络的等值方法,搭建平台并加以验证.仿真结果表明,该风电场短路故障动态等值模型能准确反映尾流效应影响下风电场有功、无功短路输出特性.

关键词: 尾流效应, 风电场, 短路故障, 聚类算法, 动态等值模型

Abstract:

Fast and accurate analysis of the short-circuit characteristics of large wind farms has important engineering application value, and the short-circuit characteristics of wind farms under the influence of the wake effect vary greatly. Therefore, it is necessary to establish a wind farm short-circuit fault time equivalence model. A wind farm short-circuit fault dynamic equivalence method considering the effect of wake effect is proposed. First, the wake effect factor is defined to reflect the degree of the unit affected by the wake effect. Then, the wake effect factor is used as the grouping basis to reduce the variability of operating state of the units within the group under the influence of the wake effect. A positive- negative- zero-sequence network equivalence method is analyzed to improve the effectiveness of the equivalence model in asymmetric short-circuit faults. An equivalence method suitable for zero-sequence network is proposed and a platform is built for verification. The simulation results show that the dynamic short-circuit fault equivalence model proposed can accurately reflect the active and reactive short-circuit output characteristics of wind farms under the influence of the wake effect.

Key words: wake effect, wind farm, short-circuit fault, clustering algorithm, dynamic equivalence model

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