Research on Intelligent Diagnosis Strategy of Secondary Device Abnormity in Smart Substation

2018 2nd International Conference on Power and Energy Engineering

Hong, Meizi^1 ; Li, Peng^1 ; Wu, Di^2 ; Wen, Bo^1 ; Li, Hengxuan^1

State Grid Hubei Electric Power Research Institute, Wuhan Hubei

430077, China^1

State Grid Hubei Electric Power Company, Wuhan Hubei

430077, China^2

关键词: Communication messages;    Intelligent diagnosis;    Intelligent substations;    Location technology;    Operation and maintenance;    Real time monitoring;    Secondary equipments;    Visualization technologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/192/1/012018/pdf
DOI  :  10.1088/1755-1315/192/1/012018

来源: IOP

【 摘 要 】

With the high integration of smart substations, the traditional secondary cable in the conventional substation, which is unable to carry out online monitoring, has been replaced by the fiber-optic network with online monitoring function. The operation and maintenance personnel conduct the status of the secondary circuit through the communication messages in the network message analyzer. However, the rapid growth of information result in a series of issues, for example information is not intuitive and coverage of important information. As the consequence, it is difficult to quickly find the location and cause of fault. For the issue of abnormal diagnosis of secondary equipment of intelligent substation, this paper studies the operation and maintenance mode and physical modelling of the secondary system, visualization technology, on-line state evaluation technology and the fault location technology. On this basis, an intelligent diagnosis strategy for the secondary device of the smart substation is put forward. Furthermore, a fault diagnosis platform is developed to implement real time monitoring of secondary circuit and analyze abnormal situation to ensure the safe and reliable operation of smart substation.