变电站应对石墨纤维异常侵害的预警与防护研究

Study on Early Warning and Protection of Substation Against Abnormal Infringement of Graphite Fiber

变电站是电网电能分配、变换和传输的枢纽,它的安全是社会稳定和经济发展的必然保障。变电站的重要性决定了它在战争时必然会成为军事打击的首要目标。石墨纤维是一种熔点高、导热性良好、化学稳定性高的导电物质,也是制备专门攻击变电站等电力设施的军事炸弹的主要材料。因此有必要对变电站针对石墨纤维异常侵害的预警与防护进行研究。构建变电站三维模型,采用有限元法计算以石墨纤维为代表的异物入侵时变电站的电场变化情况,提出基于传感技术的电力系统预警方法,并进行风幕式防护的仿真分析,提出石墨纤维侵害下的变电站风幕式防护方法。旨在提高变电站的应变和防御能力,为变电站应对以石墨纤维为代表的导电异物的侵害提出了参考和理论支撑。

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.