Real-time Security Risk Assessment and Response Strategy for Distributed Energy Stations Based on Equipment Security Boundary
In the context of energy transition,multi-energy coupled distributed energy stations play an important role.However,as the degree of multi-energy coupling is getting deepening,the safe operation of energy stations faces serious challenges.The real-time security risk assessment and response strategy of distributed energy stations based on the equipment security boundary are proposed.Firstly,with the key pipeline output power of distributed energy stations as the observed object and the multi-energy flow balance equation as the constraint,the equipment safety boundary of the distributed energy stations is constructed by combining the equipment mutual support and backup relationship to realize the judgment of energy station fault operation status.Secondly,by analyzing the characteristics of equipment and pipeline failure sources,we propose a quantitative calculation method for real-time equipment failure probability considering the equipment health status,the weather factors and the other risk sources,and construct a safety risk assessment model for the distributed energy stations considering the failure operation status.Finally,for the high-risk equipment or pipelines,an optimal response strategy for energy storage is proposed to balance safety and economy.The Pareto solution set is solved using an improved multi-objective particle swarm algorithm.The results show that the proposed security risk assessment is able to effectively quantify the security risks of energy stations.
security risk assessmentsecurity boundaryreal-time equipment failure probabilitydistributed energy station