计及通信失效的输电系统信息物理协同恢复策略  

Cyber-Physical Collaborative Restoration Strategy for Power Transmission System with Communication Failures

作　　者：庞凯元 王一铮 文福拴[1] 王崇宇 赵俊华 刘艳丽[3] PANG Kaiyuan;WANG Yizheng;WEN Fushuan;WANG Chongyu;ZHAO Junhua;LIU Yanli(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;School of Science and Engineering,The Chinese University of Hongkong,Shenzhen 518172,China;Key Laboratory of the Ministry of Education on Smart Power Grids(Tianjin University),Tianjin 300072,China)

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027 [2]香港中文大学(深圳)理工学院,广东省深圳市518172 [3]智能电网教育部重点实验室(天津大学),天津市300072

出　　处：《电力系统自动化》2021年第3期58-67,共10页Automation of Electric Power Systems

基　　金：国家重点研发计划资助项目(2017YFB0903000)。

摘　　要：为应对输电系统信息物理复合故障,提出了一种计及通信系统失效的信息物理协同恢复策略。首先,基于发电机、电力线路与负荷的故障特性,综合考虑了系统频率、节点电压、线路容量等安全约束,构建了物理系统的恢复模型。然后,提出了一种基于通信网络拓扑的信息系统恢复策略。接着,考虑信息系统故障给发电机出力调节、电力线路投运以及负荷恢复可能造成的延时,建立了物理系统恢复与信息系统恢复的交互模型。经过对潮流线性化处理,上述3个模型被整合为一个混合整数二阶锥规划模型。最后,以IEEE 30节点标准电力系统为基础构建了输电信息物理系统算例,来说明所提方法的可行性与有效性。算例结果表明,所提出的协同恢复策略能有效避免信息物理恢复操作不协调引起的二次停电,从而加快负荷恢复、降低停电损失。To cope with cyber-physical coupling failures of the power transmission system,a cyber-physical collaborative restoration strategy for a power transmission system subject to communication failures is proposed.First,a restoration model of the physical system is established based on the restoration characteristics of generators,power lines and loads,and with the system security constraints including system frequency,bus voltage,and branch capacity comprehensively considered.Next,a cyber restoration model is proposed based on the network topology of the cyber system.Then,the interactions between physical and cyber systems are modeled by utilizing the operation time delays of power output adjusting of generators,power line restoration,and load pickup due to communication failures.The above three models can be integrated into a mixed-integer second order cone programming(MISOCP)model through the linearization of the power flow.Finally,the feasibility and effectiveness of the proposed method are demonstrated by a sample cyber-physical transmission system modified from the IEEE 30-bus power system.Case Study results indicate that the proposed collaborative restoration strategy manifests its superiority in avoiding additional outages,accelerating system recovery and reducing outage losses.

关 键 词：信息物理系统 输电系统恢复 信息系统恢复 协同恢复策略 

分 类 号：TM73[电气工程—电力系统及自动化]