Rural Low Voltage Power Grid Security System Design And Research

The low voltage grid,which refers to the end user oriented grid directly in our power supply system country is the important part of the entire distribution network.As a kind of energy,electric power has penetrated into all aspects of the whole society and provided the power for social and economic development.Therefore,in order to ensure the stable development of the whole society and economy and the needs of human life and production,it is necessary to build a safe and reliable low-voltage power grid,which becomes the basis for the whole power system to operate stably.At the same time,with the economic development of the vast rural society in China,the amount of electricity needed is also increasing day by day,which also promotes the expansion of the coverage area of the rural low-voltage power network and the increase of the overall scale.Reasonable planning and design has gradually become a key link in the development planning of rural low-voltage power network in China.According to the relevant statistics,the electricity consumption of counties and counties has leapt to the first place in the world.Therefore,in order to meet the increasing load demand,it is necessary to carry out scientific,reasonable and targeted transformation and expansion of the existing power supply network.Therefore,the planning and design of rural low-voltage power grid will gradually affect the key of the whole power supply system,which should be based on scientific planning and design to meet the rural power supply demand growth as the starting point.To control the cost of the renovation of the whole low voltage power network.It can be seen that it is an urgent and meaningful work to study the theory of planning and design of low voltage power grid and to determine a more reasonable optimization method.This paper first introduces the meaning and content of electric energy quality,then puts forward the related problems of electric energy quality,and finally discusses the problem of electric energy quality.On the other hand,it discusses the current research status and future direction of power quality detection.Moreover,the characteristics of rural low-voltage power grid are investigated and analyzed,the significance and necessity of power quality detection in rural low-voltage power grid are explored,and the relevant important principles are summarized.according to the special situation of China undefined rural power network,the monitoring index is extended,and the reliability of power supply is brought into the scope of monitoring.Based on the investigation and analysis of domestic high quality power quality monitoring system,a detection system suitable for this study is selected,and the related parameters are introduced.This paper puts forward the planning scheme of the distributed power quality monitoring system for rural low voltage power grid,which is suitable for rural situation in China,and expounds the overall design,hardware,data management and communication mode respectively.The hardware system and software platform of the monitoring system are briefly introduced to improve this scheme.Finally,the theory is connected with the reality and combines with the practice.I related the actual work,briefly planning two cases of power quality.