Study on Early Warning and Protection of Substation Against Abnormal Infringement of Graphite Fiber
Substation is the hub of power distribution,transformation and transmission.Its safety is the inevitable guarantee of social stability and economic development.The importance of substation determines that it will inevitably become the primary target of military attack in the war.Graphite fiber is a conductive material with high melting point,good thermal conductivity,and high chemical stability.It is also the main material for preparing military bombs specifically designed to attack power facilities such as substations.Therefore,it is necessary to study the early warning and protection of substation against the abnormal invasion of conductive graphite fiber.In this paper,the substation model is constructed,the finite element method is used to calculate the change of electric field in the substation when the foreign matters represented by graphite fiber invade,the power system early warning method based on sensing technology is proposed,the simulation analysis of wind curtain protection is carried out,and the wind curtain protection method for the substation under the invasion of graphite fiber is proposed.This paper aims to improve the strain and defense capabilities of substations,providing reference and theoretical support for substations to deal with the infringement of conductive foreign objects represented by graphite fibers.