Distributed Voltage Optimization Model for AC/DC Hybrid Distribution Network Based on ADMM

被引：0
|
作者：
Zhang Z. [1 ]
Qiu X. [1 ]
Sun X. [1 ]
Ren H. [1 ]
Zhang M. [1 ]
机构：
[1] College of Electrical Engineering, Sichuan University, Chengdu
来源：
Dianwang Jishu/Power System Technology | 2021年 / 45卷 / 11期
关键词：
Alternating direction multiplier method; Coupled branch method; Distributed optimization; Second order conic relaxation; Voltage optimization;
D O I：
10.13335/j.1000-3673.pst.2020.1919
中图分类号：
学科分类号：
摘要：
The direct current in the distribution network is taking higher proportion, and the DC distribution technology has become one of the current research hotspots at home and abroad, which has promoted the AC/DC hybrid distribution network to become an important branch of the active distribution network and the voltage optimization problem of AC/DC hybrid distribution network has become an important research topic related to it. A partitioned distributed optimization method is proposed. The AC/DC hybrid distribution network is divided into AC and DC sub-regions using the coupled branch method based on the connection of voltage source converters. Based on the distributed optimization method of alternating direction multiplier method, a distributed optimization model is constructed with the goal of minimum power loss, minimum voltage deviation and minimum flexible load utilization. The second order conic relaxation technology and others are used to transform the model into a convex optimization model. Simulation calculations are carried out in the modified IEEE 33-node example system, and the influence of the AC side power and distributed generations on the DC voltage is analyzed. The differences between the optimization results when the converter adopts different control methods are compared. Finally, the rationality and validity of the proposed distributed optimization model is verified. © 2021, Power System Technology Press. All right reserved.
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页码：4551 / 4559
页数：8
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