Fire Safety Evaluation Of Distributed Photovoltaic Power Plant

With With the global energy shortage and environmental pollution becoming increasingly prominent,the solar photovoltaic industry is developing rapidly,especially the number of distributed photovoltaic power plants combined with building roofs is increasing,and its fire safety problem is particularly prominent.Through the literature investigation,the causes of the fire accidents in photovoltaic power plants are analyzed,but the research on fire safety assessment is lacking.Combining with fire engineering and fire science,this paper studies the fire safety assessment of photovoltaic power plant,enriching and supplementing its application in the field of fire safety.Based on the research of LM201540 "Research and Development of New High Efficiency Solar Photovoltaic Integrated Components and Product Trial" and "Research and Demonstration of Typical Emission Reduction Technologies Evaluation Method" of national key R&D projects,it first discusses the structural characteristics of distributed photovoltaic system,and excavates and analyses its characteristics in the field of fire science and fire safety in the paper.Focus on the analysis of hidden fire hazards in distributed photovoltaic system,learn the theory and method of safety management and safety evaluation.From the four aspects of people-facilities-environment-management,the basic events under each factor are induced by the risk causality diagram method,literature is consulted,expert meetings are organized,and the fire safety evaluation index system of distributed photovoltaic power plants with 4 first-level indicators and 17 second-level indicators is established by comparing with the national fire safety standards and norms.Through the selection of safety evaluation methods,the combination weight of index system is determined by analytic hierarchy process-entropy weight method,and the evaluation model is constructed by combining the method of fuzzy comprehensive evaluation.This paper evaluates a 5MW roof distributed photovoltaic power generation project in Shanghai,further verifies the scientificity and feasibility of the evaluation model constructed by the combination of AHP method and entropy weight method,timely feedback the safety level,and guide safety managers to make correct decisions and coping methods.