Rapid Evaluation Method for Seismic Resilience and Post-earthquake Repair Strategy of UHV Converter Station
Equipment of UHV converter station could be easily damaged under an earthquake.However,due to the limitation of resources,the efficiency of post-earthquake emergency repair is low,which leads to lots of economic losses.To determine efficient post-earthquake repair strategies,this paper proposes a rapid seismic resilience evaluation framework based on a functional state model.A dual-dimensional functional network model of converter station system is established from structure and electrical aspects.Besides,the Bayesian network is used to evaluate the function state rapidly.In order to improve repair efficiency,a biological heuristic multi-objective optimization algorithm is proposed.The stepped functional time-varying function is obtained by post-earthquake iterative analysis.Through seismic resilience analysis of a typical±800 kV UHV converter station,the key emergency repair equipment and the optimal post-earthquake repair strategy of converter station are obtained,and the effectiveness and necessity of the optimal repair strategy are proved.This framework quantifies the post-earthquake repair process and seismic resilience level of UHV converter station,which provides a reference for post-earthquake emergency repair of a converter station system.
万方数据
维普
