摘要
伴随着新型电力系统的构建,大规模可再生能源并网,抽水蓄能、氢储能等储能电站加快建设,未来将成为新型电力系统的重要组成部分。但受抽水泵站抽水能力、蓄水库容、自然环境等因素限制,抽水蓄能电站的蓄能功率、总容量存在上限,存在较大死库容,蓄水体积无法得到充分利用,且设计建成后,一般无法扩容或增建。该文结合国内外抽水蓄能电站改造及水下储氢的技术特点,提出一种抽水蓄能电站与电解制氢耦合储能系统的设计构想,将传统抽水蓄能电站与PEM电解制氢、氢燃料电池系统耦合,通过水下储氢气囊提升抽水蓄能电站死库容利用率,设计该系统9种运行工况和关键参数,分析该系统在可再生能源消纳能力、电力系统调节能力、经济效益、安全性等方面的提升效果,为新型储能参与新型电力系统建设提供参考。
In the process of constructing new type of power systems,renewable energy is developing in large-scale.Pumped storage,hydrogen energy storage,and other energy storage power stations are accelerating construction.Energy storage power stations will become an important part of the new power system in the future.However,due to the pumping capacity,water storage capacity,natural environment,and other factors,the storage power and total capacity of pumped storage power stations are limited.Pumped storage power stations suffer from dead reservoir cannot be fully utilized,and is almost impossible to expand their capacity after completion.Based on the technical characteristics of the renovation of pumped storage power stations and underwater hydrogen storage at home and abroad,we propose a concept of a pumped storage power station coupled with electrolytic hydrogen production energy storage system,coupling the traditional pumpedstorage power station with PEM electrolyzers and hydrogen fuel cell system.Underwater hydrogen storage bag is used to improve the utilization of dead reservoir.This paper proposes 9 operating conditions and the key parameters of the system.In addition,this work analyzes some important enhancing effects on renewable energy consumption capacity,power system regulation capacity,economic benefits,and safety.This work provides meaningful reference for the participation of new energy storage in the construction of new type of power systems.
作者
蒋迎伟
万金明
JIANG Yingwei;WAN Jinming(China Electric Power Research Institute,Beijing 100192,China)
出处
《新型电力系统》
2023年第3期221-230,共10页
NEW TYPE POWER SYSTEMS
关键词
抽水蓄能电站
氢储能
电解制氢
水下储氢
新型电力系统
电氢耦合
pumped storage power station
hydrogen storage
electrolytic hydrogen production
underwater hydrogen storage
new type power system
electric-hydrogen coupling
