全球能源互联网2025，Vol.8Issue(1)：24-35,12.DOI:10.19705/j.cnki.issn2096-5125.2025.01.004
考虑储能的交直流混合配电网无功电压分布式优化调控
Distributed Optimal Control Method of Reactive Power and Voltage in AC/DC Hybrid Distribution Network Considering Energy Storage System
摘要
Abstract
The integration of large-scale distributed power sources increases the voltage fluctuation in the AC/DC hybrid distribution network.While devices such as photovoltaic inverters and voltage source converters(VSC)can be utilized for reactive power and voltage control,energy storage systems(ESS)can play a role in peak shaving and valley filling,alleviating the risk of voltage fluctuation and violation.Therefore,this paper proposes a distributed optimal control method for reactive power and voltage in the AC/DC hybrid distribution network,considering ESS.Firstly,it analyzes the reactive power and voltage characteristics of photovoltaic inverters and VSCs,and the charging and discharging characteristics of ESS.An optimal reactive power and voltage optimization model for the AC/DC hybrid distribution network with the objective function of minimizing node voltage deviation,photovoltaic energy reduction,and network losses is presented.Then,the second-order cone relaxation technique is used to transform the model into a convex optimization model.Considering the problem of poor information privacy in centralized optimization methods,a distributed reactive power and voltage control framework based on the alternating direction method of multipliers(ADMM)is constructed.Based on the varying penalty parameter method,an accelerated ADMM method is further proposed to solve the model.Finally,case studies are conducted on the modified IEEE 33-node and IEEE 85-node systems to verify the rationality and effectiveness of the proposed distributed optimal control method for reactive power and voltage.关键词
交直流混合配电网/分布式光伏/储能系统/电压优化/分布式优化/交替方向乘子法Key words
AC/DC hybrid distribution network/distributed photovoltaic/energy storage system/voltage optimization/distributed optimization/alternating direction method of multipliers分类
动力与电气工程引用本文复制引用
张儒峰,宋宜庭,宁若汐..考虑储能的交直流混合配电网无功电压分布式优化调控[J].全球能源互联网,2025,8(1):24-35,12.基金项目
国家自然科学基金联合基金项目(U22B20105).Joint Funds of the National Natural Science Foundation of China(U22B20105). （U22B20105）
