2018年压缩空气储能技术热点回眸

Focus on compressed air energy storage hotspots in 2018

能源结构转型是世界各国正在面临的严峻问题。中国可再生能源丰富,但高比例的可再生能源渗透对电网的安全运行提出重大挑战。储能作为协同新能源运行的有效手段,可打破电能"即发即用"的特点,实现能量的高效利用。在大规模储能背景下,压缩空气储能以其自身的清洁、低成本等特点,逐步成为研究热点。2018年,压缩空气储能领域向示范工程、商业化初期不断迈进。本文回顾2018年压缩空气储能领域热点问题,总结了该领域多能互补、液化压缩、盐穴储气、循环控温、协同水利发电等技术方面的突出进展。

Transformation of energy structure is a serious problem for countries all around the world.China is rich in renewable energy but penetration of high proportion of renewable energy poses a major challenge to the safe operation of power grid.Energy storage,as an effective way to coordinate new energy sources,may breakthe characteristics of 'ready-to-use' in electricity and achieveefficient utilization of energy.In terms of large-scale energy storage,compressed air energy storage has gradually become a research hotspot because of its clean and low cost characteristics.In 2018,compressed air energy storage stepped forward to demonstration project and commercialization.This paper reviews the hot topics in the field of compressed air energy storage in 2018,and summarizes and analyzes the outstanding advances in such technologies as multi-energy complementarity,liquefied compressed air,salt cavern gas storage,cyclic temperature contro land synergistic hydroelectric power generation.