电力系统数字孪生的概念、特点及应用展望  

Concepts,Characteristics and Prospects of Application of Digital Twin in Power System

作　　者：沈沉[1] 曹仟妮 贾孟硕 陈颖[1] 黄少伟[1] SHEN Chen;CAO Qianni;JIA Mengshuo;CHEN Ying;HUANG Shaowei(Department of Electrical Engineering,Tsinghua University,Haidian District,Beijing 100084,China;Power System Lab,ETH Zurich,Zurich 8092,Switzerland)

机构地区：[1]清华大学电机工程与应用电子技术系,北京市海淀区100084 [2]苏黎世联邦理工学院电力系统实验室,瑞士苏黎世8092

出　　处：《中国电机工程学报》2022年第2期487-498,共12页Proceedings of the CSEE

基　　金：国家自然科学基金联合基金项目(U1766206)。

摘　　要：针对数字孪生在电力系统中面临的概念模糊、项目数量众多却缺乏评价标准、与传统仿真区别不明等3个问题,通过分析数字孪生的多种定义,澄清数字孪生及其相关基本概念;从数字孪生应当具备的主要特征出发,提出数字孪生项目成熟度评价的5个维度;通过回顾电力系统仿真工具的发展历史,剖析电力系统无法孕育数字孪生概念的根本原因,明确数字孪生与电力系统仿真的区别。在此基础上,提出数字孪生在电力系统应用的发展方向和赋能领域,并介绍数字孪生的常用构建技术。最后,以基于热泵的制冷供热系统数字孪生项目为例,展示数字孪生的基本特征,并结合所提成熟度评价方法对此项目进行评价分析。Aiming at three major problems of digital twin(DT)in electrical power systems,including vague definition,uneven project quality and unclear difference from traditional simulation,DT,together with its related basic concepts were clarified via analyzing various definitions.Based on the main characteristics of DT,five performance indices for maturity evaluation of DT projects were proposed.By reviewing the history of power system simulation tools,reasons why the power system could not breed the concept of DT were discussed,and differences between DT and traditional power system simulation were concluded.On this basis,both direction and enabling fields of DT in power systems were predicted.Following this,several main construction techniques of DT were also introduced.Finally,a case study on the heat pump switching control based on DT of the heating system was conducted,which aimed to show the basic characteristics of DT,and to illustrate the proposed maturity evaluation method.

关 键 词：数字孪生 新型电力系统 成熟度评价 

分 类 号：TM743[电气工程—电力系统及自动化]