【摘要】 高比例间歇性可再生能源的嵌入对燃煤电厂的灵活运行能力提出了新的要求,储能技术作为一种调峰调频的应用技术具有不可替代性。首先,从单一储热装置、电热转换-储热装置以及热化学转化-储热装置等3个方面介绍了储热技术在燃煤电厂中的研究现状,其储热性能及系统所带来的经济性收益更值得关注。其次,评述了蓄电技术的研究现状,主要包括单一蓄电装置、多能互补蓄电系统以及耦合多储能技术的蓄电系统,指出了蓄电装置的衰退性能是多种蓄电池优选的重要参考指标。最后,简述了以抽水蓄能、压缩空气储能和飞轮储能为代表的其他储能技术的研究现状,说明了储能方案仍需要进一步结合储能技术的适应条件进行方案优选与组合。研究可望为后续燃煤电厂调峰调频储能技术的研发提供方向。更多还原

【Abstract】 Insertion of high-proportion intermittent renewable energy has put forward new requirements for the flexible operation of coal-fired power plants.Energy storage technology,as a frequency regulation and load regulation technology,is irreplaceable. Firstly,three energy storage technologies currently applied in coal-fired power plants are introduced which are pure heat storage device,heat storage device through thermo-electric conversion and heat storage device through thermo-chemical conversion.Their heat storage performances and the economic benefits should be focused. Secondly,the current situation of electric storage devices is introduced which include pure electric storage device, multi-energy complementary electric storage system and electric storage system coupling multiple energy storage technologies.It is pointed out that performance degradation is an important index for optimization and selection of batteries. Finally,the research status of other energy storage technologies represented by pumped storage,compressed air energy storage and flywheel energy storage is summarized. These energy storage technologies need to be optimized and coupled considering adaptive conditions of other energy storage technologies. It is expected to provide a development direction for the peak load regulation,frequency regulation and energy storage technology of coal power plants.更多还原