Survey on Characteristics, Architecture and Applications of Digital Twin Power Grid
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摘要: 数字孪生电网旨在利用新兴的数字孪生技术帮助电网企业构建物理电网的数字孪生体。该文总结了数字孪生电网的3大特性：数据知识混合驱动、实时双向交互、虚实相融共生。讨论了规范化孪生电网项目的评价标准。回顾了数字孪生电网的典型架构设计，基于数字孪生5维模型提出了包含物理电网、孪生数据、孪生电网、孪生应用4层结构的通用性参考架构。归纳了孪生电网在系统分析、状态评估、数据预测、健康维护、仿真建模等方面的应用，探讨了孪生电网未来向孪生能源互联网、智慧能源系统等演进的意义和价值；最后从数据管理、模型构建、可视化、信息物理安全、标准确立、生态建设6个角度总结了数字孪生电网的挑战性问题。Abstract: Digital twin power grid aims to build the digital twin of physical power grid for power grid company using the emerging digital twin technology. The three key characteristics of digital twin power grid are summarized as data knowledge hybrid driven, real-time bidirectional interaction, and the mixture and symbiosis of virtual space and physical space. The standard evaluation criteria of digital twin power grid project is discussed. The typical architecture design of digital twin power grid is reviewed. Based on five-dimension digital twin model, a four-layer general reference architecture including physical part of power grid layer, digital twin data layer, digital space of power grid layer and application layer is proposed. These applications of digital twin power grid in system analysis, state evaluation, data prediction, health maintenance, simulation and modeling and other aspects are concluded. The significance and value of the evolution from digital twin power grid to digital twin Energy Internet and Smart Energy System are discussed. Finally, the existing challenging problems of digital twin power grid are summarized from six aspects: data management, model construction, visualization, information and physical security, standard establishment and ecosystem construction.
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Key words:
- Digital power grid /
- Digital twin /
- Data-driven /
- Digital transformation /
- Energy Internet
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表 1 数字孪生电网4层架构的相关文献统计
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