摘要
中国"三北"地区供暖季"以热定电"的运行方式是造成弃风的重要原因之一,采用蓄热式电锅炉供暖是提高风电消纳率的一种有效方式。将分布式蓄热和相变蓄热相结合,可以充分发挥匹配灵活、蓄热效率高和反应快速等优势。以分布式相变蓄热站的年收益为优化目标,在考虑蓄热约束、供热约束和联合供热约束的条件下,对基于城市功能区划分的分布式相变蓄热站进行了经济性分析。结果表明:区域的热负荷特性对蓄热站供暖期的年收益有显著影响;依据边际效益规律,当商务办公区选取蓄热站容量为13 200 kW·h、蓄热功率为10 800 kW,居民住宅区选取蓄热站容量为11 200 kW·h、蓄热功率为9 000 kW时蓄热站年收益达到最大值;在选定的容量和蓄热功率下,当商务办公区、居民住宅区的电价分别为0.218,0.221元/(kW·h)时,分布式相变蓄热站可达到收支的平衡。
The operation mode of“Setting Electricity by Heat”taken by the Three-North Region in China during heating seasons is one of the important causes for the wind power abandoning.The utilization rate of wind power can be improved by taking heat storage electric boilers.Combining distributed heat storage and phase change heat storage technologies can give full play to their advantages of flexible matching,high heat storage efficiency and fast response.To increase the annual return of distributed phase change heat storage stations,the economy analysis of distributed phase change heat storage stations based on urban functional zoning is made,while considering the heat storage constraint,heating constraint and combined heating constraint.The analyzing results show that the annual returns of heat storage stations are affected by the characteristics of the regional heat load.According to the law of marginal benefits,the annual return of a heat storage station in commercial area will be maximized with 13200 kW·h capacity and 10800 kW heating power,and that in a residential area will peak with 11200 kW·h capacity and 9000 kW heating power.With the selected capacity and heating power,the station can reach the break-even point with the electricity price of 0.218 Yuan(/kW·h)in the commercial area and 0.221 Yuan(/kW·h)in the residential area respectively.
作者
钟声远
赵军
李浩
王小元
周颖
ZHONG Shengyuan;ZHAO Jun;LI Hao;WANG Xiaoyuan;ZHOU Ying(Key Laboratory of Efficient Utilization of Low and Medium Grade Energy,Tianjin University,Tianjin 300350,China;China Electric Power Research Institute Company Limited,Beijing 100192,China)
出处
《华电技术》
CAS
2020年第4期23-30,共8页
HUADIAN TECHNOLOGY
基金
国家电网公司科学技术项目(SGTJDK00DWJS1900101)。
关键词
分布式相变蓄热站
城市功能区
分布式蓄热
相变蓄热
容量优化
边际效益
经济性
可再生能源
弃风
distributed phase change heat storage station
urban functional area
distributed heat storage
phase change heat storage
capacity optimization
marginal benefit
economic
renewable energy
wind power abandoning
作者简介
钟声远(1992—),男,河北保定人,在读博士研究生,工学硕士,从事信息物理融合系统研究(E-mail:zhongshengyuan@tju.edu.cn);赵军(1964—),男,天津人,教授,博士生导师,工学博士,从事中低温热能高效利用、基于低品位能源利用的多能互补分布式能源系统研究(E-mail:zhaojun@tju.edu.cn);李浩(1992—),男,内蒙古包头人,在读博士研究生,工学硕士,从事信息物理融合系统研究(E-mail:tju_lihao1992@tju.edu.cn);王小元(1997—),女,吉林长春人,在读硕士研究生,从事信息物理融合系统研究(E-mail:18222691429@163.com);周颖(1993—),女,河北邢台人,助理工程师,工学硕士,从事电力需求侧管理研究(E-mail:zhouying@epri.sgcc.com.cn)。
