Research On Grid-connected Scheme Decision-making And Operation Evaluation Of Photovoltaic Power Station

In recent years,renewable energy has been rapidly developed in various countries.China has proposed an energy development goal of "carbon peak,carbon neutral",and vigorously supported the large-scale application of renewable energy.The renewable energy projects represented by photovoltaic power generation have been put into production in various parts of our country.How to scientifically apply the renewable energy and improve the efficiency of the renewable energy project has become the focus of attention.The research on access system and operation evaluation of Gaotang 60MW PV power station has certain practical significance.Firstly,according to the influence of photovoltaic power station access system,economic and stability indexes are proposed to reflect the difference of access schemes.In this paper,Entropy weight method is used to optimize the comprehensive weight,and a decision model of photovoltaic power station access system scheme is proposed combining with the approach to ideal point method,which provides valuable decision support for the qualitative analysis of the project.Secondly,the access scheme form of Gaotang photovoltaic power station is designed in detail.According to the location of photovoltaic power station and shandong power grid planning,current scheme and long-term scheme of access system are designed,and the decision index of the scheme is calculated.The feasibility of photovoltaic power station access system is verified through the scheme decision method,which is beneficial to the development of power grid.Finally,for renewable energy projects after the access to the system running state evaluation problem of performance evaluation method is proposed,the photovoltaic power station as an example to analyze the renewable energy projects after the grid itself influence to power grid operation indicators,the establishment of index system for the corresponding reaction of photovoltaic power station running state,the evaluation results for the "best" shows that the photovoltaic power station configuration,reasonable access to good and normal operation.