新能源集中并网下大规模集中式储能规划研究述评

Review on Large-Scale Centralized Energy Storage Planning under Centralized Grid Integration of Renewable Energy

随着新能源的大规模集中式并网,新能源的消纳难题愈发突出。作为高比例可再生能源电力系统中的重要组成部分和关键支撑技术,储能的规模化应用有利于提升系统的灵活性、经济性及安全性。然而,当前综述多是侧重于对储能技术归纳总结,很少对储能规划方法,特别是大规模储能在源-网侧配置方法进行全面的梳理。因此,首先对大规模储能纳入电力系统规划后整体影响进行分析,总结归纳出储能在电力系统中的应用场景,并分析储能的引入对规划问题建模的影响;然后,分别从大规模储能源侧/网侧规划以及考虑大规模储能的源网协调规划两个方面展开论述;最后,探讨当前大规模储能规划的重点问题,并对其前景做出展望。

With the large-scale centralized grid integration of renewable energy,the problem of renewable energy consumption is becoming more and more prominent.As an important part and key supporting technology of the high-proportion renewable energy power system,the large-scale application of energy storage is conducive to improving the flexibility,economy,and security of the system.However,most of the current reviews focus on the summary of energy storage technologies,and few make a comprehensive review of energy storage planning methods,especially the configuration methods for large-scale energy storage on the source-grid side.Therefore,this paper analyzed the overall impact of including large-scale energy storage into power system planning,summarized the application scenes of energy storage in the power system,and then analyzed the impact of the introduction of energy storage on the modeling of planning problems.Next,the source-grid-side planning of large-scale energy storage and the planning of source-grid coordination considering large-scale energy storage were expounded.Finally,the key issues of the current large-scale energy storage planning and its prospects were discussed.