
华南理工大学 电力学院,广东省,广州市,510641
[ "张永杰(1999),男,硕士研究生,研究方向为配电网电压优化与控制,E-mail:epzhangyongjie@mail.scut.edu.cn" ]
[ "林凌雪(1979),女,博士,讲师,研究方向为电力系统规划运行与分析,E-mail:linlx@scut.edu.cn" ]
纸质出版:2025
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张永杰, 林凌雪. 局部量测场景下的中压配电网分布式无功电压优化控制[J]. 现代电力, 2025,42(5):867-877.
ZHANG Yongjie, LIN Lingxue. Optimal Control of Reactive Power and Voltage of Medium Voltage Distribution Network in Partial Measurement Scenarios[J]. 2025, 42(5): 867-877.
张永杰, 林凌雪. 局部量测场景下的中压配电网分布式无功电压优化控制[J]. 现代电力, 2025,42(5):867-877. DOI: 10.19725/j.cnki.1007-2322.2023.0341.
ZHANG Yongjie, LIN Lingxue. Optimal Control of Reactive Power and Voltage of Medium Voltage Distribution Network in Partial Measurement Scenarios[J]. 2025, 42(5): 867-877. DOI: 10.19725/j.cnki.1007-2322.2023.0341.
针对含分布式光伏的中压配电网存在电压越限问题与中压配电网的有限量测环境,提出一种分布式光伏参与配电网电压分布式优化控制策略。首先,以配电网网损最小为目标,构建含分布式光伏的配电网电压优化控制模型。其次,研究基于有限通信和相邻节点信息交互的分布式求解算法,根据分布式光伏所在节点以及关键位置节点的量测信息及各相邻节点之间的通信,提出自适应步长的改进动态射影原对偶分布式算法,以求解所提优化控制模型,通过数学分析证明该算法对于凸优化问题的收敛性。然后,考虑到可能存在的分布式光伏无功容量不足的情况,提出一套与分布式光伏相协调的变电站电压控制策略。最后,以IEEE 33测试系统作为算例,证明所提算法可有效解决配电网电压越限问题,并将网损降低至接近最优解的水平。
In this paper
we propose a distributed photovoltaic participation strategy for voltage optimization control of medium voltage distribution networks
addressing the voltage off-limit issues in distribution networks with distributed photovoltaics and the incomplete measurement scenarios of distribution networks. A voltage optimization control model is constructed to minimize transmission losses in a distribution network with distributed photovoltaic. The study proceeds with a distributed solution algorithm that utilizes limited communication and information exchange among neighboring nodes. By leveraging the measurement information from nodes hosting distributed photovoltaic and key positions
as well as facilitating the communication between adjacent nodes
an improved dynamic projected primal-dual distributed algorithm is proposed to solve the optimization control model. The convergence of the algorithm for convex optimization problems is mathematically analyzed and proven. Subsequently
a set of voltage control strategies for the substation coordinated with distributed photovoltaics is proposed
taking the possibility of insufficient reactive power capacity in distributed photovoltaics into account. Finally
the effectiveness of the proposed algorithm is demonstrated using the IEEE 33-test system as an example. The results demonstrate that the algorithm is capable of effectively solving voltage violation issues in distribution networks and it significantly reduces transmission losses to a level comparable with the optimal solution.
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