Design Of 3180KWp Distract Photovoltaic Connected Power System

Nowadays,the world is confronted with the dual problems of energy resource shortage and environmental pollution,clean,environmentally friendly solar energy resources more and more attention from all countries,and the solar photovoltaic power generation is an important way to make full use of solar energy resources.With the rapid development of photovoltaic power generation industry and the encouragement and support of the national policies,the number of photovoltaic power generation and grid-connected projects is increasing,and it is bound to occupy a dominant position in photovoltaic power generation.Although grid-connected power generation has many advantages,the influence of photovoltaic power generation on power system,such as power flow,voltage,power quality,relay protection and dispatching automation,will be solved urgently.Although grid-connected power generation has many advantages,the influence of photovoltaic power generation on power system,such as power flow,voltage,power quality,relay protection and dispatching auto mation,will be solved urgently.Therefore,this paper deeply studies the design of 3180 kWP distract photovoltaic connected power system.Firstly,the location of photovoltaic power station is analyzed comprehensively from three main aspects: solar energy resource,basic meteorological data and surrounding grid situation.By analyzing the factors such as the amount of solar radiation in the site area,the ambient temperature,wind speed and so on,The location of the substation around the site for access voltage rating to assess the situation to determine the rationality of photovoltaic power plant location,on the basis of the feasibility of two access system solutions.Secondly,through the power flow,transient stability,short circuit,reactive power compensation and other electrical calculation of the two feasibility of the access system program technical analysis,demonstration of photovoltaic power plant access to the grid,the relevant substation power distribution is reasonable,Instability,short circuit current and other issues,and give a reasonable reactive power compensation program.Then,by comparing the two kinds of schemes,the optimal access system scheme is considered from the aspects of safety and reliability of power network operation and investment economy.Finally,according to the relevant standards and regulations and the operation characteristics of Qinhuangdao power grid and the status quo of the photovoltaic power station and access system part of a reasonable and reliable protect ion configuration,scheduling and automation of communication configuration design program to ensure that the optimal access system,Safe and stable operation of the power grid.At the same time,the investment estimate of equipment and equipment required for each program is listed in detail,so as to ensure the economic feasibility of the proposed configuration scheme.