| 引用本文: | 陈圣博,毛晓明,容景超.考虑源-荷不确定性的动态无功补偿优化配置[J].电力自动化设备,2025,45(2):201-208. |
| CHEN Shengbo,MAO Xiaoming,RONG Jingchao.Optimal allocation of dynamic VAR compensator considering source-load uncertainty[J].Electric Power Automation Equipment,2025,45(2):201-208. |
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| 摘要: |
| 提出一种计及源-荷双重不确定性及风电出力相关性的动态无功补偿鲁棒优化配置方法。通过组合Copula函数和Sobol序列生成一系列考虑随机变量不确定性和相关性的稳态运行场景；定义节点暂态电压稳定指标，引入故障特征向量、差异信息指标，并结合谱聚类算法，筛选代表性关键故障及代表性运行方式；基于电压支撑指标、容量预估算法和粒子群优化算法，实现代表性运行方式下配置地点和容量的优化；综合代表性运行方式下的补偿方案，得到具有鲁棒性的配置方案。改进的新英格兰10机39节点系统的仿真结果表明，所提方法能在源-荷不确定性条件下实现鲁棒配置，更有效地保障电网暂态电压安全。 |
| 关键词: 暂态电压稳定 动态无功补偿 优化配置 不确定性 聚类 |
| DOI：10.16081/j.epae.202411007 |
| 分类号:TM73 |
| 基金项目:广东省自然科学基金资助项目(2023A1515010716) |
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| Optimal allocation of dynamic VAR compensator considering source-load uncertainty |
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CHEN Shengbo, MAO Xiaoming, RONG Jingchao
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School of Automation, Guangdong University of Technology, Guangzhou 510006, China
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| Abstract: |
| A robust optimal allocation method of dynamic VAR compensator is proposed considering the source-load dual uncertainty and wind power output correlation. A series of steady-state operation scenarios considering the uncertainty and correlation of random variables are generated by combining Copula function and Sobol sequence. The bus transient voltage stability index is defined, the fault feature vector and diffe-rence information indices are introduced, and the representative critical faults and representative operation modes are screened combining with Spectral clustering algorithm. Based on the voltage support index, capa-city estimation algorithm and particle swarm optimization algorithm, the optimization of configuration location and capacity are realized under representative operation modes. A robust allocation scheme is obtained by synthesizing the compensation schemes under the representative operation modes. The simulative results of a modified New England 10-machine 39-bus system show that the proposed method can achieve robust allocation under source-load uncertain condition, which can more effectively ensure the transient voltage safety of power grid. |
| Key words: transient voltage stability dynamic VAR compensator optimal allocation uncertainty clustering |
