Application Analysis Of The Spare Power Automatic Switching Equipment In Guyuan Power Grid

The standby power supply self-closing equipment(hereinafter referred to as spare power automatic switching)is an important device to ensure power supply reliable in power grid system,it helps to enhance the weak power grid structure and reduce the influence of the distribution network accident.This paper analyzes the existing problems of the application of spare power automatic switching equipment in Guyuan power grid and studies the corresponding countermeasures.In this paper,main works are as follows:(1)It introduces the investing principle and condition of the spare power automatic switching equipment.The natural Guyuan power grid is introduced also.The running state of spare power automatic switching equipment in Guyuan power grid is statistical evaluated,and the demands of spare power automatic switching is analyzed in different substations of different voltages of Guyuan power grid.(2)combined with theoretical analysis,experimental design and concrete implementation method,the deficiencies and limitations of the conventional spare power automatic switching of incoming line and subsection is analyzed in the process of field operation.combining the reality of natural Guyuan power grid operation,It puts forward the improved implementation schemes,such as the self-adaptive spare power automatic switching with double busbar and three power source and remote spare power automatic switching.(3)Combined with the example analysis of the reasons and impact of the spare power automatic right action,corresponding countermeasures are given in terms of software and hardware structure,circuit wiring and the access of new energy.