关键词: 分布式光伏, 电化学储能, 热失控分析, 风险矩阵分析, 油气田开发

Abstract: With the gradual improvement of the coupling between new energy technology and oil and gas field development business，a number of distributed new energy application projects with "photovoltaic power system+oil well production" and "photovoltaic power system + gas field gathering and transportation" as the main technical route have begun to enter the stage of construction and putting in- to production. In order to solve the problem of continuous operation of remote isolated photovoltaic grid in oil and gas fields and sup- press the fluctuation of grid connected photovoltaic power generation，well-proven electrochemical energy storage technologies are of- ten used as a supporting means on site. However，the safety of electrochemical energy storage has always been the main challenge for its popularization and application，which brings great risks to the production sites of oil and gas fields. In this paper，the installation safety distance of typical electrochemical energy storage system under different conditions is analyzed first，based on which a layout for optical energy storage is recommended. After that，the risk matrix analysis method is used to evaluate all risks related to the operation of photo- voltaic energy storage projects in oil and gas fields，and the risk levels of hidden hazard events are rated. Finally，key design points and safety management strategies adaptable to the energy storage devices of distributed photovoltaic system in oil and gas fields are devel- oped，which provides guidance for the safety configuration and accident prevention of distributed photovoltaic energy storage.

Key words: distributed photovoltaic power system, electrochemical energy storage, thermal runaway analysis, risk matrix analysis, oil , and gas field development