园区电热协同低品位热源利用的供能规划策略  

Energy Supply Planning Strategy of Electric-Heating Cooperation and Low-Grade Heat Source Utilization in Parks

作　　者：梁安琪 蒋一博 丁屹峰 孙强 秦帅 张伍勋 李香龙 LIANG Anqi;JIANG Yibo;DING Qifeng;SUN Qiang;QIN Shuai;ZHANG Wuxun;LI Xianglong(Electric Power Research Institute of State Grid Beijing Electric Power Company,Beijing 100075,China;State Grid(Suzhou)Urban Energy Research Institute,Suzhou,Jiangsu 215000,China;State Grid Beijing Electric Power Company,Beijing 100031,China;State Grid(Beijing)Integrated Energy Service Co.,Ltd.,Beijing 100176,China)

机构地区：[1]国网北京市电力公司电力科学研究院,北京100075 [2]国网(苏州)城市能源研究院,江苏苏州215000 [3]国网北京市电力公司,北京100031 [4]国网(北京)综合能源服务有限公司,北京100176

出　　处：《南方电网技术》2023年第4期167-178,共12页Southern Power System Technology

基　　金：国家电网公司总部科技项目(5400-202111575A-0-5-SF);国家自然科学基金项目联合基金资助项目(U2166208)。

摘　　要：在“双碳”背景下,如何充分挖掘园区低品位热源资源潜力,提高园区清洁供能水平是当前的研究重点。综合考虑园区低品位热源资源禀赋与负荷需求,提出一种园区级分布式清洁供能策略,即采用“低品位热源+电热泵+余热发电设备”的供热与供电方式建立分布式能源枢纽站,以上级能源网作为供能补充,根据用户实时负荷需求灵活调节系统供能参数。为实现上述供能策略,首先综合考虑源、荷资源禀赋、地理位置与匹配关系,提出园区级供能集群划分的多目标优化方法;其次,提出考虑电热潮流约束与电、热耦合设备出力约束的电热协同系统规划模型,优化能源枢纽站设备容量配置;最后,利用分段线性化方法对模型进行简化求解。某待规划供能园区算例结果表明,所提策略实现了对本地低品位热源的高效利用,具有较强的电、热能流耦合关系,相比于传统电热协同供能方式,降低了园区一次能源消耗与碳排放水平。Under the policy background of“double carbon”,fully exploring the potential of low-grade heat source and improving the level of clean energy supply in the park is the focus of current research.This paper considers low-grade heat source endowment and load demand in the park,puts forward a kind of park level distributed clean energy supply strategy which means a distributed energy hub station is established by adopting the heating and power supply mode of“low-grade heat source with electric heat pump and waste heat generation equipment”.Taking the superior energy network as energy supply supplement,energy hub station flexibly adjusts the system energy supply parameters according to the real-time load demand of users.In order to realize the above energy sup-ply strategy,firstly,a multi-objective optimization method of park-level energy supply cluster division is proposed by comprehensively considering the endowment of energy and load resources,geographical location and matching relationship.Secondly,the electric-heating cooperative planning model considering the constraints of electric and heating power flow and the output of electric-heating coupling equipment is proposed to optimize the equipment capacity allocation of energy hub stations.Finally,the piecewise linearization method is used to simplify the model.The results of an energy supply demonstration park to be planned show that the proposed strategy achieves efficient utilization of local low-grade heat source,and it has strong coupling relationship between electricity and thermal energy flow.Compared with the conventional electric-heating cooperative energy supply method,and the primary energy consumption and carbon emission level of the park are reduced.

关 键 词：园区 低品位热源 电热协同 集群划分 设备配置 

分 类 号：TM73[电气工程—电力系统及自动化] TK01[动力工程及工程热物理]