The Research And Design Of Power Cable Online Monitoring System

Power cables in the power system used more and more widely, realize the securityand reliability of cable and economic operation of the power system to ensure safety andeconomic behavior has the very vital significance. In the cable running processes, cableline happened before electrical fault can cause cable or accessories local temperaturerise, resulting in further on the Distributed optical fiber temperature sensor technology(DTS, Distributed temperature sensoring) realize cable skin temperature monitoringalong, through the analysis of the temperature field and dynamic cable carrying capacitydetected early cable running the safe hidden trouble that exist, have the function of thenip in the bud.This paper is on-line monitoring system of power cable launched research anddesign, first of power cable monitoring system the research significance and choose abackground in this paper are analyzed, and fully in the subject both at home and abroadwere reviewed the current situation of the study, this paper the research content of thesimple introduction; Then the power cable monitoring the related theory were reviewedin this paper, firstly this system monitoring task, DTS and load flow analysis andcalculation, the distributed optical fiber temperature sensing technology are introduced,analyzes the structure of the power cable, the thermal model of power cable roadcarrying capacity calculation, analysis of on-line monitoring method, cable faults bureauput monitoring technology, establishing power cable simulation model. And then thesystem structure design, this paper introduces the system first design principles andbasis for system function is introduced, the system hardware and software for thedetailed design, design analysis database system, and then realize the core of the systemfunction, first analysis system development tools and running environment, the systemstructure of the software design of data receiving module design and implementation, ondata processing module design and implementation, the system state display to carry onthe analysis, make the data monitoring, realize data report and database design,realization alarm Settings and response, realize the event log user management andsystem configuration design, final test and analysis of.