On-line Monitoring And Condition Maintenance Of Intelligent Substation Based On Multi-interval Information Correlation

At present,China’s intelligent substation construction project has gradually been implemented to the key stage of the application of the second batch of pilot projects,and it is also the period in which China has gradually opened the state of overhaul of substation equipment.Full application of state maintenance technology to the online maintenance of the primary equipment of the system can shorten the maintenance cycle on the basis of the original maintenance and detect the fault as early as possible,which is an important issue to be studied in the current state maintenance.Based on this research background,this paper studies the online monitoring method of electrical equipment status based on multi-interval information.The RTDS model is built in a 110 k V substation system in Yichang,and the online monitoring system is applied to the actual case for testing and analysis.The application effect is superior.The main research work of this paper is as follows:First,the paper first proposes the application function concept and network mode of the intelligent substation,which is compared with the network adjustment mode adopted by the traditional substation network,which shows the advantage of fast information transmission.The intelligent substation station domain host can obtain the information related to the fault from the SV and GOOSE networks to realize the fast fault location function.Secondly,an on-line monitoring scheme for substation with multi-interval information correlation is established.The relationship between information,the relationship between self-test factors and multi-interval start information is found in the multi-interval system sampling,and the current substation spacing device is used.Combine,realize system abnormality check and error information screening,etc.,and provide technical support for online monitoring of intelligent substationFinally,taking a 110 k V substation project case in Yichang as the test object,the detection model is built on the RTDS simulation platform,and the function of the multi-interval online monitoring system is tested.The test results can achieve the expected goal,with fault information troubleshooting and fast.Fault location online monitoring function.