Hidden Fault Detection of Digital Relay Protection Devices Based on Multi-Source Information
[Purposes]The current layout of hidden fault detection nodes in digital relay protection devices is mainly independent,and the fault detection range is limited,resulting in a decrease in the number of misoperation identification in the later stage.Therefore,a digital relay protection device hidden fault de-tection method based on multi-source information is proposed.[Methods]Firstly,based on the current testing requirements,a network format deployment structure is adopted to deploy detection nodes,break-ing the limitations of fault detection scope,and preprocessing the collected data.Then,based on this,a hidden fault detection model for multi-source information relay protection devices is designed,and dif-ferential verification is used to achieve hidden fault detection and processing.[Findings]The test results show that for the selected four test areas,combined with the operating status of Line 1,Line 2,and Line 3,hidden fault detection can be carried out,and the final misoperation identification frequency can reach more than 15 times.[Conclusions]With the assistance and support of multiple sources of information,the designed hidden fault detection method is more efficient,flexible,and stable,and has significantly improved pertinence,which has practical application significance,achieving innovation in the form of fault detection.
multi source informationdigital relay protectionfault detectionrelay protection device
万方数据
维普
