Research on Partitioning Real-Time Reactive Power Optimization Method for Distribution Network with Renewable Energy

2022 5th International Conference on Power and Energy Applications (ICPEA) Pub Date : 2022-11-18 DOI:10.1109/ICPEA56363.2022.10052515

Wei Li, Xianghong Zuo, Liping Ju, Guopeng Wang, Yukun Qiu, H. Nian

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Abstract

The randomness of power output and load fluctuations brought about by the high proportion of renewable distributed power sources greatly increases the difficulty of voltage regulation in the distribution network. In this paper, a dynamic partitioning method for real-time optimal scheduling of the distribution network is proposed, taking into account the dynamic reactive power regulation characteristics of distributed power sources such as photovoltaics and energy storage. Firstly, according to the structural characteristics of the radial distribution network, nodes at the end of the branch that are not directly connected to distributed power sources are merged towards the front of the branch, and each node is initially partitioned using the clustering modularity as an indicator. Next, further partitioning is carried out based on the standby reactive power in the partition. Finally, the IEEE-33 node system is used as an example for simulation analysis by MATLAB, and the results show that the partitioning can effectively improve the rapidity of system schedule.

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可再生能源配电网分块实时无功优化方法研究

可再生分布式电源的高比例所带来的输出功率的随机性和负荷波动，大大增加了配电网电压调节的难度。本文考虑光伏、储能等分布式电源的动态无功调节特性，提出了一种配电网实时优化调度的动态分区方法。首先，根据径向配电网的结构特点，将分支末端未与分布式电源直接连接的节点向分支前端合并，并以聚类模块化为指标对每个节点进行初步划分;接下来，根据分区中的备用无功功率进行进一步分区。最后，以IEEE-33节点系统为例，通过MATLAB进行仿真分析，结果表明，分区可以有效地提高系统调度的快速性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 5th International Conference on Power and Energy Applications (ICPEA)

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