湖南电力 ›› 2025, Vol. 45 ›› Issue (6): 84-90.doi: 10.3969/j.issn.1008-0198.2025.06.011

• 电网运行与控制 • 上一篇    下一篇

基于改进全纯嵌入法的含光伏电站主动调节无功补偿策略

余笑东1, 凌煦1, 王源2,3, 奚江惠1, 项兴尧4, 唐飞2,3   

  1. 1.国家电网有限公司华中分部,湖北 武汉 430077;
    2.武汉大学电气与自动化学院,湖北 武汉 430072;
    3.湖北省交直流智能配电网工程技术研究中心,湖北 武汉 430072;
    4.国网湖北省电力有限公司十堰供电公司,湖北 十堰 442000
  • 收稿日期:2025-08-29 修回日期:2025-10-14 出版日期:2025-12-25 发布日期:2026-01-13
  • 通信作者: 王源(2002),男,硕士研究生,研究方向为电力系统稳定与控制。
  • 作者简介:余笑东(1992),女,中级工程师,从事大电网稳定分析、电磁暂态仿真技术、新能源与储能建模等研究工作。凌煦(1969),男,教授级高级工程师,从事大电网运行与规划、抽水蓄能协同规划等研究工作。奚江惠(1975),女,教授级高级工程师,从事大电网运行与规划、新型电力系统建设等研究工作。项兴尧(1989),男,高级工程师,从事电网运行与规划、低碳规划等研究工作。唐飞(1982),男,教授,博士生导师,研究方向为电力系统稳定与控制、电力系统通信等。
  • 基金资助:
    国家电网有限公司科技项目(52140025000B)

A Reactive Power Compensation Strategy with Active Regulation for Photovoltaic Power Plants Based on the Improved Holomorphic Embedding Method

YU Xiaodong1, LING Xu1, WANG Yuan2,3, XI Jianghui1, XIANG Xingyao4, TANG Fei2,3   

  1. 1. Central China Branch of State Grid Corporation of China, Wuhan 430077, China;
    2. School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China;
    3. Hubei Province AC/DC Intelligent Distribution Network Engineering Technology Research Center,Wuhan 430072, China;
    4. State Grid Shiyan Power Supply Company, Shiyan 442000, China
  • Received:2025-08-29 Revised:2025-10-14 Online:2025-12-25 Published:2026-01-13

摘要: 随着分布式新能源大量接入配电网,主网潮流变轻,静态电压偏高且难以控制,而现有的集中式光伏电站静止无功发生器(static var generator,SVG)设备的无功补偿能力却未充分利用。针对以上问题,提出一种基于改进全纯嵌入法的含光伏电站主动调节的无功补偿策略,对传统全纯嵌入潮流法进行改进,构建改进全纯嵌入潮流模型,充分利用集中式光伏电站的无功补偿能力,并进行额外无功补偿设备的选址定容,提高电力系统电压稳定性,降低无功补偿设备的投资成本。以改进后的IEEE 39节点系统为算例,仿真结果表明,电力系统电压稳定性得到有效提高,同时无功补偿装置配置总容量减少了约20%。

关键词: 稳态过电压, 全纯嵌入, 无功补偿, 集中式光伏电站

Abstract: With the large-scale integration of distributed new energy into distribution networks, the main grid power flow weakens, causing excessively high and hard-to-regulate static voltage. However, the reactive power compensation capacity of static var generator (SVG) in existing centralized photovoltaic (PV) power plants remains underutilized. To solve these issues, a reactive power compensation strategy with active adjustment for PV-integrated power plants based on an improved holomorphic embedding method (HEM) is proposed. The traditional holomorphic embedding power flow (HEPF) method is modified to build an improved HEPF model, which fully utilizes the reactive power compensation capacity of centralized PV power plants and optimizes the siting and sizing of additional reactive power compensation devices. This strategy enhances power system voltage stability and reduces the investment cost of such devices. Simulations on a modified IEEE 39-bus system show that the power system voltage stability is effectively improved, and the total installed capacity of reactive power compensation devices is reduced by approximately 20%.

Key words: steady-state overvoltage, holomorphic embedding, reactive power compensation, centralized photovoltaic power plants

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