摘要
受用电负荷快速增长和极端天气下来水不确定性提高等因素影响,高水电占比地区电力供给侧与需求侧波动性矛盾日益突出,电力系统对具备长期调节能力的灵活性资源需求愈发迫切。氢储能作为具有长期调节能力的新型储能,能够缓解高水电占比地区供需紧张形势。为此设计了适应高水电占比地区实际情况的电氢混合储能优化配置模型,在目标函数中引入了失负荷惩罚函数,并量化了大型/中小型水电机组发电能力随时间的变化情况。以某高水电占比地区96台不同类型发电机组构成的电力系统为分析对象,相较于现行储能配置要求,模型优化结果使得水电消纳量提升了7 188 MW·h,失负荷电量下降了6 513 MW·h,总成本下降了319.4万元。横向对比了高水电占比地区、高火电占比地区、高新能源占比地区对不同类型储能的需求规模以及储能企业的收益情况,相关结论能够为未来储能投资发展提供参考。
Affected by the rapid electricity load growth and the increase of water uncertainty under extreme weather conditions,the contradiction between supply-side and demand-side volatility in areas with high hydropower proportion has become increasingly prominent.The demand for flexible resources with long-term regulation capability is becoming more urgent.Hydrogen energy storage with long-term regulation capacity can alleviate the tense situation of supply and demand in areas with high proportion of hydropower.The research designs an optimal allocation model of electric-hydrogen hybrid energy storage,which is suitable for areas with high hydropower proportion.The loss of load penalty function is introduced into the objective function,and the variation of generation capacity of large/small and medium-sized hydropower units with time is quantified.By taking the power system composed of 96 different types of generators in a high hydropower proportion area as the object,analysis is performed.Compared with the current energy storage configuration requirements,the optimization result of the model increases the hydropower consumption by 7188 MW·h,reduces the unloaded electricity by 6513 MW·h,and reduces the total cost by 3.194 million yuan.Moreover,the demand scale of different types of energy storage and the income of energy storage enterprises in high hydropower area,high thermal power area and high new energy area are compared horizontally.The relevant conclusions can provide reference for the development of energy storage investment in the future.
作者
孟凡奇
王鹏
王海利
辛力
MENG Fanqi;WANG Peng;WANG Haili;XIN Li(School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China;Inner Mongolia Power Exchange Center Co.,Ltd.,Hohhot 010020,China)
出处
《热力发电》
CAS
CSCD
北大核心
2024年第9期126-135,共10页
Thermal Power Generation
基金
内蒙古电力交易中心有限公司项目(DLJY-YBHT-2023-SCGLB-0401-0036)。
关键词
高水电占比
电氢混合储能
调节能力
失负荷影响
high proportion of hydropower
electric-hydrogen hybrid energy storage
regulation capacity
load loss effect
