Influence Of Distributed Photovoltaic Power Generation On Power Quality Of Distribution Network

Distributed photovoltaic power station is usually refers to the use of distributed resources,installed on a smaller scale, located in the vicinity of the user’s power generation system 。It generally access the grid below 35 thousand volts or lower voltage level. As of the end of 2016,new and cumulative installed capacity is thw world’s first. With the large-scale grid-connected generation system of photovoltaic grid-connected generation system, the impace of photovoltaicsystem on the power grid is increasingly prominent.In ordero guarantee the safe operation of regional power grid and photovoltaic system,it is particularly important to study its impact on the grid.In this paper, the influence of distributed photovoltaic generation on the powar quality of distribution network is studied. First, the principle of distributed photovoltaic power generationis described in detail,their advantages ans disadvantages are analyzed :Secondly .The principle and composition of distributed PV power station equipment are anyzed in detail; Third,According to the shortage of distributed puwer station , the paper puts forward the decisive factors which affect the quality of and connection, According to Power Grid Corp of distributed PV power plant and network technology, the establiishment of a unified circuit model of photoltaic power generation system, a stytematic study on various power quality problems of distrihuted photovoltaic power distribution network to access.Through the simulation in Matlab /Simulink, analysis of the impact of distributed photovoltaic power generation gaid connected in the power quality ,and find out the importantfactors influencing the quality of power grid ,determine to sole the grid distributed photovoltaic on distribution network strategy.