Research On The Construction Of Urban Distribution Network Automation And Its Influence On Distribution Network Reliability

As the technology and construction of power transmission links become more and more perfect,it is found that the reliability of distribution network is a very important link for the safe and stable operation of the entire power system.The construction of distribution network automation is one o f the powerful means to improve the reliability of distribution network,especially in recent years,it has received extensive attention from relevant scholars.Improving the distribution level,self-healing capacity and power supply reliability of the distribution network is not only the purpose of distribution network automation construction,but also the main development direction of “strong grid”.This paper analyzes the impact of two kinds of distribution network automation modes commonly used in urban distribution network on the technical requirements of technology and construction in the process of urban distribution network automation;the impact of system power supply reliability;application.Distribution network automation technology can improve the reliability of distribution network power supply,improve power quality,quickly identify fault areas,and immediately isolate them,and quickly restore normal power supply in non-fault areas.In addition,the traditional distribution network is weak,a nd regional power grids can adopt relevant policies and measures according to the local conditions,improve the automation of distribution network,and realize the transformation of urban power grids into modern power systems.Therefore,based on the development process of distribution network automation at home and abroad,combined with the current situation of Yingtan Power Grid,the research on the impact of distribution network automation on the reliability of distribution network is carried out,and the development direction of distribution network automation construction of Yingtan Power Grid is obtained.This paper firstly introduces the development status of Yingtan distribution network and distribution network automation.Based on the actual situation,it is necessary to analyze the need to build distribution network automation in Yingtan Power Grid.Then,the characteristics and functions of distribution network automation system are briefly analyzed.And analyze and explain some problems in the process of distribution network construction,which has certain reference value for Yingtan distribution network automation,especially in construction construction.Then,this paper proposes a distribution network zoning evaluation model,and establishes a failure impact analysis table of the influence of various components in each block on the load point.Finally,through OpenDSS simulation,the reliability indexes of the two operation modes of the local control mode and the centralized control mode are calc ulated,and the quantitative analysis is compared with the reliability index of the non-distribution network automation.Finally,the conclusion is drawn.Power grid reliability,distribution network automation is effective.