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...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。展开更多
A future smart grid must fulfill the vision of the Energy Internet in which millions of people produce their own energy from renewables in their homes, offices, and factories and share it with each other. Electric veh...A future smart grid must fulfill the vision of the Energy Internet in which millions of people produce their own energy from renewables in their homes, offices, and factories and share it with each other. Electric vehicles and local energy storage will be widely deployed. Internet technology will be utilized to transform the power grid into an energysharing inter-grid. To prepare for the future, a smart grid with intelligent periphery, or smart GRIP, is proposed. The building blocks of GRIP architecture are called clusters and include an energy-management system （EMS）-controlled transmission grid in the core and distribution grids, micro-grids, and smart buildings and homes on the periphery; all of which are hierarchically structured. The layered architecture of GRIP allows a seamless transition from the present to the future and plug-and-play interoperability. The basic functions of a cluster consist of （1） dispatch, （2） smoothing, and （3） mitigation. A risk-limiting dispatch methodology is presented; a new device, called the electric spring, is developed for smoothing out fluctuations in periphery clusters; and means to mitigate failures are discussed.展开更多
文摘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。
基金sponsored by National Key Basic Research Program of China (973 Program) (2012CB215102) for WuUS National Science Foundation Award (1135872) for VaraiyaHong Kong RGC Theme-based Research Project (T23-701/14-N) for Hui
文摘A future smart grid must fulfill the vision of the Energy Internet in which millions of people produce their own energy from renewables in their homes, offices, and factories and share it with each other. Electric vehicles and local energy storage will be widely deployed. Internet technology will be utilized to transform the power grid into an energysharing inter-grid. To prepare for the future, a smart grid with intelligent periphery, or smart GRIP, is proposed. The building blocks of GRIP architecture are called clusters and include an energy-management system （EMS）-controlled transmission grid in the core and distribution grids, micro-grids, and smart buildings and homes on the periphery; all of which are hierarchically structured. The layered architecture of GRIP allows a seamless transition from the present to the future and plug-and-play interoperability. The basic functions of a cluster consist of （1） dispatch, （2） smoothing, and （3） mitigation. A risk-limiting dispatch methodology is presented; a new device, called the electric spring, is developed for smoothing out fluctuations in periphery clusters; and means to mitigate failures are discussed.
