电力系统保护与控制2025，Vol.53Issue(13)：23-35,13.DOI:10.19783/j.cnki.pspc.241217
计及分布式水风光发电时空相关性的多微网协同优化策略
Multi-microgrid collaborative optimization strategy considering spatiotemporal correlation of distributed hydro-wind-solar generation
摘要
Abstract
Distributed hydropower plants,characterized by fast start-stop capability and flexible operation,can effectively smooth the output fluctuations of wind and solar power,thereby enhancing the local consumption of renewable energy.However,the spatial mismatch between water-wind-solar resources and local loads necessitates coordinated optimization among multiple microgrids in different regions to further improve renewable energy utilization.This paper proposes a day-ahead and intra-day coordinative optimization strategy for multi-microgrids,considering the spatiotemporal correlation of distributed water-wind-solar generation.First,the spatiotemporal correlation of hydro,wind,and solar outputs is quantitatively evaluated based on hourly fluctuations,and a complementarity index is introduced to measure the degree of output complementarity.Second,a day-ahead coordinated optimization model is established,incorporating constraints on hydro-wind-solar complementarity,and the day-ahead power exchange plan among microgrids is determined using a decentralized coordinated optimization method.Third,an intra-day rolling correction model is formulated to complementarily accommodate renewables in real time and mitigate the impact of day-ahead forecasting errors.Finally,case studies validate the effectiveness of the proposed model,providing important technical support for the efficient utilization of renewable energy.关键词
水风光互补/可再生能源/分散协调优化/多时间尺度/多微网Key words
hydro-wind-solar complementarity/renewable energy/decentralized coordination and optimization/multi-timescale/multi-microgrid引用本文复制引用
刘浩,王丹,刘佳委,谢学渊,俞乾,何桂雄..计及分布式水风光发电时空相关性的多微网协同优化策略[J].电力系统保护与控制,2025,53(13):23-35,13.基金项目
This work is supported by the Science and Technology Project of the Headquarters of State Grid Corporation of China(No.5400-202323225A-1-1-ZN). 国家电网公司总部科技项目资助(5400-202323225A-1-1-ZN) （No.5400-202323225A-1-1-ZN）
