电化学储能电站并网前安全风险评估的思考

Thinking of Grid-Connected Security Risk Assessment for Electrochemical Energy Storage Power Station

[目的]从能源角度看,发展新质生产力的本质就是支撑清洁低碳、安全充裕、经济高效、供需协同、灵活智能的新型能源体系。新型储能是新型能源体系中不可缺少的一环,其中电化学储能的应用最为广泛,伴随着电化学储能产业快速发展和储能电站装机容量不断提升,国内外的电化学储能安全事故频发,电化学储能安全成为制约储能大规模发展应用的关键因素,因此有必要开展电化学储能安全风险评估,识别储能电站安全风险隐患。[方法]针对电化学储能电站并网这一重大节点,在储能电站并网前通过对设计资料、产品检验报告等资料的核查,系统性评估储能系统安全、储能电站站区安全、储能系统接入电网安全条件,核实储能电站是否满足并网安全要求,识别储能电站安全风险隐患。[结果]在此基础上总结出对于电化学储能电站并网安全风险评估的一套方法或标准,以此进一步丰富电力储能标准体系中安全环保模块,填补国内对于电化学储能电站并网前安全评估要求的空白。与此同时,规范电化学储能电站并网前安全风险评估的范围及内容深度,指导建设方、第三方等机构更加规范地实施并网前的评估工作,整体提升电化学储能电站并网的安全性。[结论]研究成果可指导电化学储能安全性评价,为电化学储能安全标准体系建设提供有价值的参考。

[Introduction]From the perspective of energy,the essence of developing new quality production forces is to support a new energy system that is clean and low-carbon,safe and abundant,economical and efficient,supply-demand coordinated,flexible,and intelligent.New energy storage is one of the indispensable parts of the new energy system,and electrochemical energy storage is the most widely used.Considering frequent electrochemical energy storage safety accidents at home and abroad in the rapid development of the electrochemical energy storage industry and the continuous growth of installed capacity of energy storage power stations,electrochemical energy storage safety has become a key factor restricting the large-scale development and application of energy storage.[Method]The grid connection of an energy storage power station is a major node of electrochemical energy storage,so,before grid connection,it is important to verify whether the energy storage power station meets the safety requirements for grid connection and identify the potential safety risks of the energy storage power station through the verification of design data,product inspection reports and other data,on-site inspection of the energy storage power station,and systematic safety evaluation of the energy storage system,the energy storage power station area and the to-be-connected power grid by the energy storage system.[Result]On this basis,a set of methods or standards for assessing grid connection safety risks of electrochemical energy storage stations is summarized.It enriches the safety and environmental protection modules in the standard system for power energy storage and fills China's gap in requirements for safety assessment before the grid connection of electrochemical energy storage stations.It standardizes the scope and content depth of safety risk assessment before grid connection of electrochemical energy storage power stations and can be used as a guide for employers,third parties,and other interested parties to conduct assessments prior grid connection in a more standardized manner and improve the overall safety of grid connection of electrochemical energy storage power stations.[Conclusion]The research result provides a valuable reference for building a safety standard system for electrochemical energy storage and applying energy storage in new scenarios.