摘要
全功率变速抽水蓄能机组具有诸多技术优势,但受大功率变频装置制造难度及成本制约,目前仅在中小容量机组上具有应用经济性。中小型抽水蓄能电站与全功率变速机组完美适配,打开了其推广应用空间。为促进抽水蓄能全功率变速技术的国产化、规模化应用,满足新型电力系统更优质的调节能力需求,首先介绍了变速抽水蓄能技术原理及其发展现状,然后从技术优势、应用场景和发展面临的挑战三个方面分析全功率变速抽水蓄能技术的发展前景,结果表明缺乏科学的变速机组作用效益量化评估方法、相关工程配套设计以及全功率变速机组实际运行经验,是当前制约全功率变速技术推广的主要因素,建立变速机组应用收益指标评价体系、加快推进全功率变速机组相关配套设计、因地制宜开展中小型抽水蓄能全功率变速机组示范工程建设是破解上述问题的关键之要,可为后续全功率变速技术在中小型抽水蓄能项目落地应用、高质量服务新型电力系统提供参考。
The full power variable speed pumped storage units have many technical advantages,but due to the manufacturing difficulty and cost of high-power frequency conversion devices,they currently only have economic applicability in small and medium-sized units.The perfect compatibility between small and medium-sized pumped storage power stations and full power variable speed units has opened up the space for their promotion and application.In order to promote the localization and large-scale application of full power variable speed pumped storage technology and meet the higher quality regulation capacity requirements of new-type power systems,the principle and development status of variable speed pumped storage technology is first introduced.Then,the development prospects of full power variable speed pumped storage technology are analyzed from three aspects:technical advantages,application scenarios and development challenges.The results indicate that the lack of scientific quantitative evaluation methods for the benefits of variable speed units,related engineering supporting designs and actual operating experience of full power variable speed units are the main factors currently restricting the promotion of full power variable speed technology.Establishing an evaluation system for the application benefits of variable speed units,accelerating the related supporting design of full power variable speed units and carrying out demonstration projects for small and medium-sized pumped storage power stations equipped with full power variable speed units according to local conditions are the key to solving the above problems,which can provide reference for the application of full power variable speed technology in small and medium-sized pumped storage projects and the high-quality operation of new-type power systems.
作者
杨柳
官澜
王震洲
YANG Liu;GUAN Lan;WANG Zhenzhou(State Grid Economic and Technological Research Institute,Beijing 102209,China)
出处
《水电与抽水蓄能》
2024年第5期109-114,共6页
Hydropower and Pumped Storage
基金
国家电网公司技术研究服务项目“面向新型电力系统的抽水蓄能精益化开发建设和安全运行技术研究支撑”(SGZB0000XNJS2400474)。
关键词
中小型抽水蓄能
变速机组
全功率变速
small and medium-sized pumped storage
variable speed unit
full power variable speed
