| 引用本文: | 肖红燕,钟康骅,樊 玮,等.海上风电场并网点无功趋优控制区间整定[J].电力系统保护与控制,2025,53(10):23-32.[点击复制] |
| XIAO Hongyan,ZHONG Kanghua,FAN Wei,et al.Reactive power optimization control interval setting for offshore wind farm grid connection points[J].Power System Protection and Control,2025,53(10):23-32[点击复制] |
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| 摘要: |
| 海上风电场并网往往加剧了接入点所在区域的无功电压波动，现有的自动电压控制策略难以适应其无功调节需求。为此，以节能为导向，提出了一种适用于海上风电场并网点的实用化无功趋优控制区间整定方法。首先，结合海上风电场的运行特性，研究了并网区域的有功损耗二次曲线。然后，根据海上风电场的有功出力能力进行有功出力场景划分。并通过以有功损耗差值最小为原则给定趋优代价，根据趋优代价求取无功趋优控制区间。最后将不同场景下的一系列区间通过半不变量法进行整定得出差异化的无功控制区间上下限定值。基于实际海上风电场并网场景进行仿真实验，表明所提无功趋优区间定值的应用可以显著提高并网区域的能效和电压稳定性，为海上风电场并网的无功控制提供了一种有效的解决方案。 |
| 关键词: 海上风电场 无功趋优控制 趋优区间 区间整定 场景分类 |
| DOI：10.19783/j.cnki.pspc.240917 |
| 投稿时间：2024-07-14修订日期：2024-11-05 |
| 基金项目:广东省自然科学基金项目资助(2024A1515010435)；南方电网公司科技项目资助(036000KK52222013(GDKJXM 20222142)) |
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| Reactive power optimization control interval setting for offshore wind farm grid connection points |
| XIAO Hongyan1,ZHONG Kanghua1,FAN Wei2,YI Yingqi1,HUO Jiaxing1,ZHANG Yongjun1 |
| (1. Smart Energy Engineering Technology Research Center, School of Electric Power, South China University of Technology,
Guangzhou 510640, China; 2. Electric Power Dispatching Control Center of Guangdong
Power Grid Co., Ltd., Guangzhou 510062, China) |
| Abstract: |
| The integration of offshore wind farms into the power grid often accelerates reactive power and voltage fluctuations in the access point area, rendering existing automatic voltage control (AVC) strategy insufficient to meet the reactive power regulation requirements. To address this, an energy-saving-oriented and practical method for setting reactive power optimization control intervals at grid connection points of offshore wind farms is proposed. First, considering the operational characteristics of offshore wind farms, the quadratic curve of active power loss in the grid connection area is investigated. Then, active output scenarios are categorized according to the active power output capacity of the offshore wind farm. By using the principle of minimizing active power loss differences to define the optimization cost, the reactive power optimization control interval is determined accordingly. Finally, a series of intervals under different scenarios are adjusted using the semi-invariant method to obtain the differentiated upper and lower limit values for reactive power control. Simulation experiments based on actual offshore wind farm grid connection scenarios show that the proposed method significantly improves energy efficiency and voltage stability in the grid connection area, offering an effective solution for reactive power control in offshore wind power integration. |
| Key words: offshore wind farm reactive power optimization control optimization interval interval tuning scene classification |
