电力系统自动化2025，Vol.49Issue(10)：154-164,11.DOI:10.7500/AEPS20240717008
考虑水-电风险耦合的共享库容多时间尺度协同优化策略
Multi-time-scale Collaborative Optimization Strategy for Shared Storage Capacity Considering Coupling of Hydro-Electric Risk
摘要
Abstract
Frequent extreme weather events in recent years have increased the risk of water level control and dispatching operation in the hydropower enriched virtual power plant(HEVPP).First,to enhance the risk response ability of HEVPP on multiple time scales,an optimal operation model of HEVPP shared storage capacity considering the coupling of hydro-electric risk is proposed.Among them,the upper-layer model constructs a cross-month rolling optimization model considering the uncertainty of incoming water volume,and decomposes the annual operation plan to obtain the end-of-month water level guidance boundary and monthly electricity plan.The lower-layer model proposes an overall risk description method for HEVPP based on the joint chance constraints of reserve capacity,constructs a monthly output and reserve model considering the deviation of hydro-electric operation,and forms a two-layer optimal model of HEVPP considering the end-of-month water level connection of shared storage capacity to deal with the potential hydro-electric risk during the rolling cycle.Then,based on the principle of risk sharing,a joint opportunity constraint transformation method for the monthly shared storage capacity in the lower-layer model is proposed,achieving the effective decoupling of HEVPP hydro-electric operation constraints.Finally,taking an HEVPP in Lishui City,Zhejiang Province,China as a case for numerical analysis.The results show that,through rolling optimization of HEVPP operation plan,the multi-time-scale coupling of hydro-electric risk can be effectively dealt with,and the proposed reserve capacity allocation method can improve the water level control capability and economic benefits of each internal hydropower station.关键词
虚拟电厂/共享库容/多时间尺度/滚动优化/联合机会约束/风险耦合/风险分摊Key words
virtual power plant/shared storage capacity/multi-time-scale/rolling optimization/joint chance constraint/risk coupling/risk sharing引用本文复制引用
周升,彭里卓,任娇蓉,高强,杨莉,林振智..考虑水-电风险耦合的共享库容多时间尺度协同优化策略[J].电力系统自动化,2025,49(10):154-164,11.基金项目
国家自然科学基金资助项目(U2166206) （U2166206）
国网浙江省电力有限公司科技项目(B311NB23000C). This work is supported by National Natural Science Foundation of China(No.U2166206)and State Grid Zhejiang Electric Power Co.,Ltd.(No.B311NB23000C). （B311NB23000C）
