摘要
为提升电力信息物理系统(electric cyber-physical system, ECPS)面对台风等极端灾害的抵抗力,基于两阶段随机优化方法,提出一种考虑双网结构和功能耦合特征的电力/通信网架随机加固规划模型。模型第一阶段计及电力/通信线路的结构耦合特征,以总加固投资和台风灾害损失期望最小为目标,确定加固的电力/通信线路,其中,台风灾害的损失期望由第二阶段计算;第二阶段考虑通信网络故障对电力系统应急调度的级联影响,最小化随机台风场景下ECPS的故障损失期望。为生成具有代表性的台风场景集,确保随机加固方案的适应性,根据台风场景毁伤特征与ECPS故障损失的映射关系,提出一种基于高斯混合模型(Gaussian mixture model, GMM)聚类的约简场景集生成方法。最后,基于逐步对冲算法求解随机加固模型,通过对IEEE RTS 79节点信息物理系统的仿真分析,证明了文章提出的电力/通信网架随机加固规划方法对ECPS具有较好的韧性提升效果。
To improve the resilience of electric cyber-physical system(ECPS)against typhoon disasters,we proposed a collaborative stochastic hardening model for power and communication network considering the structural and functional coupling based on the two-stage stochastic optimization method in this paper.The first stage of the model took into account the structural coupling characteristics of the power/communication lines,and determined the reinforced power/communication lines with the objective of minimizing the total reinforcement investment and typhoon damage expectation,where the typhoon damage expectation was calculated by the second stage.The second stage minimizes the expectation of failure loss of ECPS under random typhoon scenarios,considering functional coupling.In order to generate a representative typhoon scenario set and ensure the adaptability of the stochastic hardening scheme,according to the mapping relationship between typhoon scenario destruction features and ECPS fault loss,a reduction scenario set generation method based on Gaussian mixture model(GMM)clustering was proposed.Finally,based on the Progressive Hedging algorithm to solve the stochastic hardening model,the simulation analysis of the IEEE RTS 79-node information-physical system proves that the stochastic hardening planning method proposed in this paper has a good resilience enhancement effect on ECPS.
作者
张艺伟
刘文霞
黄少锋
马伸铜
ZHANG Yiwei;LIU Wenxia;HUANG Shaofeng;MA Shentong(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University),Beijing 102206,China;State Grid Xuzhou Power Supply Company,Xuzhou 221005,China)
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2024年第1期20-29,I0003,共11页
Journal of North China Electric Power University：Natural Science Edition
基金
国家重大科技专项(2020YFC0827001)。
关键词
电力信息物理系统
韧性
网架加固
两阶段随机优化
结构和功能耦合
electric cyber-physical system
resilience
hardening
two stage stochastic optimization
structural and functional coupling
