摘要
“双碳”背景下,大规模开发利用低碳和清洁能源是中国能源转型过程的必经之路。复合能源管道(CEP)实现了电能与液化天然气的同时输送,其传输损耗低,是当前能源传输的重要发展方向。针对中心城市等负荷集中区域能源密集程度和耦合程度显著提升等问题,构建了基于CEP供能的新型区域综合能源系统。该系统考虑了CEP冷能的梯级利用,实现了电、气、冷、热等多能耦合互补,提高了系统能源利用率。为提升系统运行的经济性,以系统购能成本、运维成本为目标,建立了考虑系统电-气综合需求响应的优化调度模型。最后,通过算例仿真,对比分析了不同场景下系统能流的优化调度结果,验证了所提系统和优化模型的可行性与经济性。
In the background of“carbon emission peak and carbon neutrality”,the large-scale development and utilization of lowcarbon and clean energy is the only way for China’s energy transition process.Composite energy pipeline(CEP) realizes the simultaneous transmission of electric energy and liquefied natural gas(LNG) with low transmission loss,which is an important development direction of energy transmission at present.In view of the significant increase in energy intensity and coupling degree in load-concentrated areas such as central cities,a new regional integrated energy system(RIES) based on the energy supply through CEP is constructed.The system considers the cascade utilization of CEP cooling energy,realizes the multi-energy coupling and complementation of electricity,gas,cooling and heat,and improves the energy utilization rate of the system.In order to improve the economy of system operation,an optimal dispatch model considering the electricity-gas integrated demand response of the system is established with the objectives of system energy purchase cost,and operation and maintenance cost.Finally,through simulation example,the optimal dispatch results of system energy flow in different scenarios are compared and analyzed,and the feasibility and effectiveness of the proposed system and optimization model are verified.
作者
李茜
宾帆
张安安
王思远
廖长江
杨威
LI Qian;BIN Fan;ZHANG An’an;WANG Siyuan;LIAO Changjiang;YANG Wei(School of Electrical Engineering and Information,Southwest Petroleum University,Chengdu 610500,China;Nanjing NARI Water Conservancy and Hydropower Technology Co.,Ltd.,Nanjing 211000,China;Minshan Hydrenergy Co.,Ltd.,Chengdu 610094,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2022年第17期91-101,共11页
Automation of Electric Power Systems
基金
中央引导地方科技发展专项资助项目(2021ZYD0042)
四川省科技计划资助项目(2021YFSY0051)。
关键词
区域综合能源系统
复合能源管道
多能流统一优化
冷能梯级利用
需求响应
regional integrated energy system(RIES)
composite energy pipeline(CEP)
multi-energy flow unified optimization
cascade utilization of cooling energy
demand response
作者简介
李茜(1988-),女,博士,副教授,主要研究方向:电力系统稳定与控制、分布式发电和综合能源系统。E-mail:swpuliqian@163.com;宾帆(1998-),男,硕士研究生,主要研究方向:综合能源系统。E-mail:2983323955@qq.com;通信作者:张安安(1977-),男,博士,教授,主要研究方向:综合能源系统、电-气协调控制。E-mail:ananzhang@swpu.edu.cn。
