储能技术在电力系统中的应用

基于大规模电力储能技术的研究和应用现状，从需求、技术和经济的角度出发，考虑到我国能源的区域性特征、“西电东送、南北互供、全国联网”格局和国家中长期发展战略，探讨了电力储能技术发展的趋势。“十一五”期间国家电网公司将立足研发100 kW级全钒液流电池、MW级钠流电池和MJ级容量液氮温区运行超导储能系统，加快建设10 GW级抽水蓄能混合式电站，以优化电网配置、加强调节和输变电能力、解决跨区域供需矛盾、确保电网安全可靠运行，并满足人们对电能质量的要求和可再生能源发展的需要。

Analysis on Application of Energy Storage Technologies in Power Grids

According to the present situation of research, development and application of large-scale energy storage technologies as well as considering the regional features of energy resource distribution in China, the middle and long term development strategy of China and the pattern of"transmitting electric power from West China to East China, power exchange between South China and North China and nationwide interconnection of power grids in China", the development trend of energy storage technology are analyzed and discussed from the viewpoints of requirement, technology and economy. During the period of 11th Five Year Plan, the State Grid Corporation of China (SGCC) will research and develop the all-vanadium redox flow batteries with capacity in 100kW grade, the sodium sulpur batteries with capacity in megawatt grade, and the superconducting magnetic energy storage systems with capacity in megajoule grade that operates in temperature range of liquid-nitrogen;speed up the construction of mixed pumped storage power stations with capacity in 10GW grade to realize the optimized configuration of power grid;enhance the capability of power regulation, transmission and transformation to solve the trans-regional imbalance between supply and demand as well as to ensure the secure and reliable operation of power grid in China and to satisfy both requirement to power quality and development of renewable energy resources.