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武汉大学电气与自动化学院,湖北省 武汉市 430072
Received:27 September 2021,
Revised:2022-01-24,
Published Online:06 May 2022,
Published:25 July 2022
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黄志强,陈业伟,毛志鹏等.柔性多状态开关与分布式储能系统联合接入规划[J].电力系统自动化,2022,46(14):29-37.
HUANG Zhiqiang,CHEN Yewei,MAO Zhipeng,et al.Joint Access Planning of Soft Open Point and Distributed Energy Storage System[J].Automation of Electric Power Systems,2022,46(14):29-37.
黄志强,陈业伟,毛志鹏等.柔性多状态开关与分布式储能系统联合接入规划[J].电力系统自动化,2022,46(14):29-37. DOI: 10.7500/AEPS20210927004.
HUANG Zhiqiang,CHEN Yewei,MAO Zhipeng,et al.Joint Access Planning of Soft Open Point and Distributed Energy Storage System[J].Automation of Electric Power Systems,2022,46(14):29-37. DOI: 10.7500/AEPS20210927004.
随着分布式电源渗透率的提升,配电网运行面临着源荷强随机波动带来的挑战。柔性多状态开关(SOP)和分布式储能系统(DESS)可分别在空间和时间上实现潮流的灵活调节,进而提升配电网运行的灵活性。建立了基于时空特性的SOP和DESS双层规划模型,其中上层为选址定容层,考虑系统经济性,以配电网年综合运行成本最小作为优化目标;下层为运行优化层,以配电网网损费用和电压偏移之和最小作为优化目标。通过社区挖掘算法和改进负荷矩方法确定规划方案待安装节点集合,并采用自适应粒子群优化和二阶锥规划的混合算法求解规划模型。以IEEE 33节点系统进行算例分析与对比验证,结果表明SOP和DESS联合接入能有效改善配电网电压时空分布,且运行安装成本最低。
With the increasing penetration of distributed generators
the operation of distribution networks is facing the challenge of strong random fluctuation of source and load. Soft open point (SOP) and distributed energy storage system (DESS) can realize the flexible adjustment of power flow from space and time
respectively
and improve the operation flexibility of the distribution network. A bi-layer planning model of SOP and DESS based on spatiotemporal characteristics is established. The upper layer is the siting and sizing layer
which considers the system economy and takes the minimum annual comprehensive operation cost of the distribution network as the optimization objective. The lower layer is the operation optimization layer
which takes the minimum sum of the distribution network loss cost and voltage deviation as the optimization objective. A set of nodes to be installed in the planning scheme is determined by community mining algorithm and improved load moment method. The hybrid algorithm of adaptive particle swarm optimization and second-order cone programming is used to solve the planning model. The results of example analysis and comparative verification through the IEEE 33-bus system show that the joint access of SOP and DESS can effectively improve the spatio-temporal distribution of distribution network voltage and has the lowest operation and installation cost.
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