Distributed Photovoltaic Power System Design Of Jinzhong Power Grid

With social progress and quick development of science,people's demand of energy is increasing.In recent years,as an environmental friendly method of power,photovoltaic power is rapidly developing.It solves the problem brought by thermoelectric power.It has the advantages of flexible installation,low investment,long working life and can quickly adjust to load.Nowadays,photovoltaic power is becoming more and more popular.At some place which has strong light intensity,photovoltaic power is tried to be linked with distribution network.It will undoubtedly change the distribution network and the management methods as well.After research and analysis the distribution of solar resources,we made a conclusion that it was feasible and necessary to build photovoltaic power station in Jinzhong,Shanxi.In this paper,we focused on the actual engineering construction of distributed photovoltaic power station and researched more about access system design.Firstly,we analyzed meteorological conditions and geographical conditions of Jinzhong,talked about its current situation of distributed power supply.Then,we analyzed the influence of power quality and security.Some improvement methods are raised here.After these,based on the access capacity of distributed photovoltaic power systems and the demand of users,we promoted several typical schemes of access scheme in accordance with typical design published by State Grid Corporation of China.At last,we gave a sample of distributed photovoltaic power station of Jinzhong,which can be a guidance of photovoltaic power station construction.