Design And Application Of DC Power Remote Detection System Of Substation

In order to satisfy the demand of strong smart grid construction in China,intelligent substation has become the development trend of substation.As an important part of substation DC power supply system,must also be gradually developed to the direction of digital,procedural,intelligent,to adapt to the unattended substation,plans to make the transition to the state overhaul maintenance of power grid operation of the new situation,to ensure the new operational maintenance mode,the safe and stable operation of power system.Through the design application of substation dc power supply remote monitoring system,in order to realize the state of each section of all kinds of DC equipments within substation amount collection,upload will run the information integration and the distance monitoring center,using specially designed expert diagnosis analysis module,the remote monitoring system of substation DC power supply analysis and mining,extract useful information and fault diagnosis,auxiliary operation maintenance personnel daily management and decision analysis,to ensure the secure and stable operation of the transformer substation dc system,safe operation for the grid.In this article,the principle of remote monitoring system of substation DC power supply design,architecture,function is studied,on the basis of the further study of the DC power supply remote monitoring system of the key technologies involved in the design process,including battery voltage balancing technology,internal resistance measurement technology,remote charging and discharging operation safety control strategy,DC power system insulation monitoring technology and information collection and communication network design and so on.To realize online monitoring of DC power supply equipment running information data,analysis,diagnosis,laying the theoretical and technical basis.