摘要
特高压交直流的建设与大规模新能源接入使大电网的调控越来越复杂,而数字孪生能够为电网向数字化转型、提高电网调度运行决策的准确性与实时性提供关键技术支撑。文章首先建立复杂大电网数字孪生虚拟模型,提出实现电网物理系统与数字孪生系统的实时信息交互和协同控制方法,并构建电网数字孪生软件平台。然后介绍基于数字孪生的秒级在线分析系统的架构及实施方案,将在线分析系统的响应速度由分钟级提升到秒级。最后对于数字孪生在复杂大电网调度运行的4个方面应用场景进行探讨。
The construction of UHVAC/UHVDC and large-scale new energy access make the regulation of large-scale power grid more and more complex,and digital twin can provide key technical support for the transformation of power grid to digital and improve the accuracy and real-time of power grid dispatching and operation decision.Firstly,the digital twin virtual model of complex large-scale power grid is established in this paper,the method of real-time information interaction and collaborative control between power grid physical system and digital twin system is presented,and the power grid digital twin software platform is constructed.Then the architecture and implementation scheme of the second level online analysis system based on digital twin is introduced,and the response speed of the online analysis system is improved from minute level to second level.Finally,four application scenarios of digital twin in complex large-scale power grid dispatching operation are discussed.
作者
周二专
张思远
石辉
严剑峰
吴倩红
杨延栋
ZHOU Erzhuan;ZHANG Siyuan;SHI Hui;YAN Jianfeng;WU Qianhong;YANG Yandong(State Key Laboratory of Power Grid Safety and Energy Conservation(China Electric Power Research Institute),Beijing 100192,China;State Grid Hunan Electric Power Co.,Ltd.,Changsha 410004,China;Electric Power Research Institute,State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830000,China)
出处
《电力信息与通信技术》
2022年第8期50-59,共10页
Electric Power Information and Communication Technology
基金
国家电网有限公司总部科技项目“基于数字孪生的大电网调规数字化与稳定态势图谱智能构建技术研究”(5100-202155016A-0-0-00)。
关键词
复杂大电网
数字孪生
电网在线分析
电网调度运行
complex large-scale power grid
digital twin
online analysis of power grid
power grid dispatching and operation
