Study Of Computer Supervisory Control System In BaoTou 500kV Substation

Computer supervisory control system has been adopted slowly by user , mainly because of its powerful function , flexible style, changing conveniently, kindly user-interfaces and saving labor, it has become main supervisory control style of substations, at the same time, improve the operational efficiency. But more and more problem have been found during the adoption on 500kV substations, which have higher voltage and more data , such as lower transmission speed , losing data , disordered communication protocol, higher EMI circumstance, dissatisfied extended function, etc.In this paper, the scheme of computer supervisory control system in BaoTou 500kV substation has been studied, Front-end computer has been canceled, equipment in bay level connect double ether net directly, a individual net has been built for protection, the demand of system function is brought forward and the hardware application is made; Through the analyse of EMI, the conductive interference is found as the main factor; In the end , some suggestions such as the compartmentalization of specialty ,incorporating in power network at same rate, supervising and measuring online are gave out .