Research On Five-prevention System In 110kV XX Substation

As automation control technology,information and communication technology,sensor technology and microprocessor technology and the organic integration of grid infrastructure,grid intelligence development degree deepening,showing a strong and self-healing,compatible,economy,integration and optimization of operation characteristics,the safe operation of the power production of power flow,information flow and business flow,and other functions in one influence more and more important in power system,prevent wrong operation is of great significance for the whole power system.With the help of the computer technology to power high voltage switch equipment five prevention is to prevent the power system operation device,operations staff to the incorrect operation is the guarantee the safe operation of the power system,and to avoid power equipment and personnel the important means of the accident.Prevent wrong operation system under the correct operating conditions to ensure operations staff electric implement production operation of intelligence,and played a reduce the working strength of substation operator operations,to study is helpful to prevent the generation of the devil and the wrong ticket,promote the five prevention operation ticket process further standardization of operation.Study how to extracting micro operations from the substation prevent wrong operation function requirements,as well as the practical application in substation effect is one of the important concerns power system error prevention system.110 KVXX based on cross power substation five operation based on functional requirements,considering the error function and operation under the premise of integration of the output,problems of application in substation error prevention system were studied.The main research content is as follows:(1)in view of the traditional integration error protected microcomputer system and the system of paper error prevention system running status,with five prevention device structure and working principle of the technology as the foundation,of single station error protected under the condition of defects and substation integration management five analyze the functional requirements.In the protection of power system under the premise of safety,high efficiency and stable operation,based on element correlation algorithm and computer graphics technology of microcomputer control system,and the five against the computer system configuration,communication mode,business functions,hardware configuration and software management platform to achieve is expounded,the operation is simple and convenient at the same time,the implementation of a comprehensive and thorough output error protected function and operation integration operation.According to actual needs of the cross power grid to pour brake operation,gives the optimization prevent wrong operation rules,in reducing blocking judge conditions and to judge operation at the same time to prevent false logic is illustrated,and combining with the operation,the internal logic calculation formula is given out.(2)110 KVXX grid substation as an example,to improve the five prevention system in substation unlock function,computer keys to leapfrog,emergency unlock operation and the maintenance operation ticket executive functions such as introduction,and the five functional verification,and to improve the five anti-lock system and old system in the substation operation data for support,from the device and realize the function,the system stability and the brake operation time etc,the application effect is compared.Results show that based on component correlation algorithm and computer graphics technology of microcomputer control system has a more simple and easy to use by mistake the proposed process and data maintenance function,meet the demand of 110 KVXX substation five prevention function,in substation operations staff work efficiency increased at the same time to effectively prevent the formation of wrong ticket,invalid ballots.