考虑智能软开关的交直流混联配电网分布式优化  

Distributed Optimization of AC/DC Hybrid Distribution Network Considering Soft Open Point

作　　者：綦龙飞 杨镜非[1] 肇嘉毅 QI Longfei;YANG Jingfei;ZHAO Jiayi(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电力系统及其自动化学报》2025年第3期75-83,共9页Proceedings of the CSU-EPSA

基　　金：国家重点研发计划(2020YFB2104504)。

摘　　要：为实现交直流混联配电网的高效运行,提出一种考虑智能软开关的交直流混联配电网分布式优化方法。首先,对交直流混联配电网进行合理分区,并以不同分区内网损最小、智能软开关损耗最小及分布式电源有功功率削减量最小为目标,并建立各个分区的子优化模型。然后,已优化集群向待优化集群传递部分边界信息,采用改进的交替方向乘子法协调求解各个区域的子模型,经过迭代计算后得到最优解,实现交直流混联配电网区间解耦和各分区分布式优化。最后,采用改进的IEEE123节点算例分析验证模型的有效性和可行性,结果表明,所提方法提高了交直流混联配电网运行经济性,降低了配电网损耗及缓解电压越限问题。To realize the efficient operation of AC/DC hybrid distribution network,a distributed optimization method for AC/DC hybrid distribution network considering soft open point(SOP)is proposed in this paper.First,the AC/DC hy-brid distribution network is reasonably partitioned,the objectives of minimizing the network loss in different partitions,minimizing the loss of SOP and minimizing the active power curtailment of distributed generations are taken,and the sub-optimization models in each partition are established.Then,the first optimized cluster transmits part of the bound-ary information to the to-be-optimized cluster,an improved alternating direction method of multipliers is used to coordi-nate the solving of sub-models in each partition,and the optimal solution is obtained after iterative calculation to realize the decoupling of partitions in the AC/DC hybrid distribution network and the distributed optimization of each partition.Finally,an improved IEEE 123-node network is used as an example to analyze and verify the effectiveness and feasibili-ty of the proposed model.Results show that the proposed method improves the operation economy of AC/DC hybrid dis-tribution network,reduces the losses of distribution network and alleviates the voltage overrun problem.

关 键 词：智能软开关 交直流混联配电网 分布式电源 分布式优化 交替方向乘子法 

分 类 号：TM732[电气工程—电力系统及自动化]