能源互联网数字孪生及其应用

Digital Twin of the Energy Internet and Its Application

能源互联网是以电力系统为核心,利用可再生能源发电技术、信息技术,融合电力网络、天然气网络、供热/冷网络等多能源网以及电气交通网形成的能源互联共享网络。能源互联网是促进可再生能源消纳,提高能源使用效率的重要途径。因构成网络多,特性差异大,能源互联网的规划、运行和控制面临大量难题。数字孪生是融合物联网技术、通信技术、大数据分析技术和高性能计算技术的先进仿真分析技术,有助于解决当前能源互联网发展面临的技术问题。首先介绍了数字孪生的基本概念,给出了能源互联网数字孪生的构建方式与可能应用;然后以能源互联网规划为例,详述了数字孪生技术解决的关键问题;最后,介绍了基于数字孪生的能源互联网规划平台—CloudIEPS,通过能源互联网规划案例进一步证明了数字孪生技术的重要作用。

Based on electrical power systems, leveraging renewable energy generation technology, and information technology, the energy Internet fuses power grids, natural gas networks, heat/cold supply networks, electric transportation networks, etc. into an interconnected energy sharing network. The energy Internet is an important technology for promoting renewable energy integration and improving energy efficiency. However, due to the complexity of multiple energy networks and the significant differences between them, the planning, operation, and control of the energy Internet presents several technical difficulties. Digital twins is an advanced simulation technology based on the Internet of things, communications, big data, and high performance computing that may provide effective solutions to the problems that the energy Internet is currently facing. In this paper, the concept of digital twins is firstly introduced, the construction and possible applications of digital twins to energy Internets are discussed, the problems that the energy Internet digital twin can solve are illustrated by taking the planning of energy Internets as an example, and a digital twin technology based energy Internet planning platform—CloudIEPS—is introduced to further exemplify the role of the energy Internet digital twin through a concrete planning case.