基于泛在电力物联网多源信息的电网动态风险评估系统

针对当前电力调控中心难以计及多源信息对电网动态过程进行有效风险评估的现状，指出了泛在电力物联网大背景下电网风险评估所面临的挑战与机遇，提出了基于泛在电力物联网的电网动态风险评估体系架构。首先介绍了电网动态风险评估概念，并设计了基于物联网的电网动态风险评估体系流程。其次提出了如何利用泛在物联网多源数据解决故障概率动态感知、故障集动态选取、故障后状态动态生成以及操作过程动态风险评估等关键问题的处理方法。最后基于该体系架构，设计了相应的软件系统，介绍了该系统的数据源、数据中台以及主要功能模块，并结合实际案例，对系统的应用情况进行了说明。

Dynamic Risk Assessment System for Power System Based on Multi-source Information of the Ubiquitous Power Internet of Things

In view of the current situation that it is difficult for the power regulation and control center to take the multi-source information into account for the effective dynamic risk assessment of power grid, this paper points out the challenges and opportunities faced by the power grid risk assessment under the background of the Ubiquitous Power Internet of Things. A power grid dynamic risk assessment architecture based on the Ubiquitous Power Internet of Things is proposed. Firstly, the concept of power grid dynamic risk assessment is introduced, and the process of power grid dynamic risk assessment system based on Internet of Things is established. Secondly, by taking advantage of the multi-source information provided by the Ubiquitous Power Internet of Things, the procedures to resolve the key issues are presented, such as dynamic perception of fault probability, dynamic selection of fault set, dynamic generation of post-fault state and dynamic risk assessment of operation process and so on. Finally, based on the architecture, the corresponding software system is designed. The data source, data platform and main function modules of the system are also described. The application of the system is illustrated with practical cases.