摘要
增加能源消费侧的运行灵活性是提升电力系统高比例随机波动新能源消纳能力的重要技术手段。建设电、气、热等多种能源互补的能源局域网(energy distribution network,EDN),可在非电能源系统中大规模利用清洁的可再生能源,显著提升电力需求侧的运行灵活性,甚至追踪并响应系统内新能源电源的随机波动。该文探讨EDN这一典型的综合能源系统,较为系统地讨论EDN典型的基础概念、物理架构与多能互补的工作机理。在此基础上,进一步提出EDN的3类工作模式及工作象限,分析其相对于智能电网典型应用的运行特征。面向新能源的大规模消纳难题,该文提出EDN的余量市场模式及其基本的交易流程,分析该交易模式对电力市场改革的积极意义。最后,展望EDN所亟需突破的关键技术问题。
Accessing flexibilities in energy demand side will pave the way for a higher integration of variable and intermittent renewable energy in power systems. Energy distribution network（EDN） is a novel concept of integrating flexibilities in demand side by interoperating diverse energies such as electricity, gas and heat within a local area. With highly flexible energy interoperations, EDN can actively respond to variable renewable energy leading to a higher renewable share in power systems. This paper systematically presented the concept of EDN with the discussions on its infrastructure and fundamentals on multi-energy coordination. Three types of operation modes of EDN were investigated as well as mode conversions and comparisons with typical smart grid applications. A surplus market of EDN was proposed in the paper aiming at trading large amounts of renewable energy surplus, which can be a positive attempt of China＇s power market reformation. Finally, the outlook of potential breakthroughs was summarized in the paper.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2016年第21期5776-5787,6020,共12页
Proceedings of the CSEE
基金
国家863高技术基金项目(2014AA051901)
国家自然科学基金项目(51261130472
51577096
51477082)
国家国际科技合作专项项目(2014DFG62670)~~
关键词
能源互联网
能源局域网
物理架构
运行模式
余量市场
电力市场
energy internet
energy distribution network（EDN）
infrastructure
operation modes
surplus market
power market
