| 计及光伏的配电网多级无功联动协调优化 |
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| 引用本文：李国武1,许健2,吉小鹏2.计及光伏的配电网多级无功联动协调优化[J].电网与清洁能源,2020,36(8):103~111 |
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| 基金项目:国家重点研发项计划（2017YFB0903204） |
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| 中文摘要:考虑到主动配电网具有多级管控的特点，建立了主动配电网综合无功多级优化模型。考虑到分布式光伏波动性对电网无功的冲击和本身具备的无功调节能力，建立计及光伏的配电网四级无功调节策略。一方面充分利用传统电容器无功补偿方式的补偿能力，一方面充分考虑光伏电站的无功和有功调节能力，建立综合考虑电网运行质量和DG运行情况的四级调压无功优化模型。基于改进的IEEE33节点算例进行了仿真，仿真结果表明：所提出的模型和策略充分利用了主动配电网内分散的调压资源，有效减少了电容器补偿装置动作次数，并改善了配电网电压水平。 |
| 中文关键词:主动配电网 无功控制 分布式光伏 多级优化 网络重构 |
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| Coordinated Optimization of Multi-Level Reactive Power in the Distribution Network Considering Photovoltaic |
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| Abstract:Considering the characteristics of the active distribution network with multi-level management and control， a comprehensive reactive multi-level optimization model for the active distribution network is established in this paper. Based on the characteristics of the voltage regulation resources in the active distribution network， by analyzing the negative effects of the reactive power optimization strategy on the distribution network， the priority order between reactive power optimization strategies is added to the model， and the four levels of the active distribution network voltage regulation strategies include distributed photovoltaic power plant reactive power regulation， capacitor reactive power compensation regulation， photovoltaic power plant active power regulation， and network reconstruction regulation. At the same time， a multi-objective reactive power optimization model with the highest qualified voltage offset rate， the smallest operating network loss， and the smallest DG weakening amount is established. A simulation based on an improved IEEE33 node example is performed. The simulation results show that the proposed method makes full use of the distributed voltage regulation resources in the active distribution network， reduces the number of capacitor compensation device operations effectively， and improves the distribution network voltage. |
| keywords:active distribution network reactive power control distributed photovoltaic multi-level optimization network reconstruction |
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