电力系统保护与控制2025，Vol.53Issue(4)：48-58,11.DOI:10.19783/j.cnki.pspc.240356
计及时延的智能配电网光储就地-分布电压优化控制方法
Local-distributed voltage optimization control method for photovoltaics and energy storage in a smart distribution network considering time delay
摘要
Abstract
The high proportion and strong randomness of photovoltaic(PV)systems being dispersed and disorderly integrated into smart distribution networks often lead to node voltage violation.Additionally,communication delay between control objects during voltage regulation further increases the difficulty of voltage optimization control in smart distribution networks.To address this issue,this paper proposes a local distributed coordinated control strategy for PV and energy storage,considering the influence of time delay.First,the reactive power regulation capability of PV inverters is analyzed to determine the reactive power output limit for local control,and a distributed consistency factor is introduced to construct a local distributed control strategy for distribution networks with high PV penetration.Furthermore,combined with the active power regulation capability of energy storage,a local distributed voltage optimization control model for PV and storage coordination without considering time delay is proposed.Then,considering the impact of communication delay,a consensus protocol is established to couple the algorithm with communication delay,and a time-delay local distributed voltage optimization control model for storage coordination is constructed.The stability margin of the time-delay model is solved using linear matrix inequality,and the delay model is then used for compensation control.Finally,an improved IEEE 33-bus system is used for numerical verification.The results show that after applying the proposed method for communication delay compensation,network losses and voltage deviations are reduced by 23.01%and 20.52%,respectively,demonstrating the superiority of the proposed method.关键词
高比例光伏/储能调节/电压优化/一致性算法/通信时延Key words
high proportion photovoltaic/energy storage regulation/voltage optimization/consistency algorithm/communication delay引用本文复制引用
葛磊蛟,崔庆雪,李昌禄,李小平..计及时延的智能配电网光储就地-分布电压优化控制方法[J].电力系统保护与控制,2025,53(4):48-58,11.基金项目
This work is supported by the National Key Research and Development Program of China(No.2022YFB2403800). 国家重点研发计划项目资助(2022YFB2403800) （No.2022YFB2403800）
国家自然科学基金项目资助(52277118) （52277118）
天津市自然科学基金多元投入重点项目资助(22JCZDJC00660) （22JCZDJC00660）
