Research On Cost-Profit Of Pumped Storage Combine With Wind-PV Power System

Renewable energy has been developing rapidly around the world in recent years.The good news is that clean energy such as wind power or solar power,whether installed capacity or electricity generation,is steadily increasing,and its proportion in total power supply is also increasing.However,it is necessary to realize that the factors restricting the development of the wind power and solar power is still exist and very serious.Firstly,the landscape and other unstable,volatile power supply of power will make the grid become less reliable and less secure.Secondly,due to the power grid to accept ability is limited,wind farms and photovoltaic power station is in a state of abandoning power,and they often unable to get the corresponding returns,and this trend is become more and more serious in recent years.Therefore,the power generation capacity of wind farm photovoltaic power station is often limited,and the current research on joint operation usually focuses on one or two specific problems.It is necessary to further optimize the comprehensiveness and the important factor of the cost and benefit of the development of clean energy power stations.This paper builds a new mathematical operation mode of integrated power system,including pumped storage power stations,wind power plants and solar photovoltaic plants about operation and cost-profit.Based on scientific and reasonable joint output plan,the mode is optimized by genetic algorithm and obtain the optimized output of Pumped Storage Power Station.This mode consider different kind of power station and get the best profit.In addition,this paper analyzes the influence from important parameter to the cost and profit and finally get the optimal parameter value and the most reasonable model.This paper also considers cost,profit,output plan as well as the practical application and comprehensiveness of the joint operation model.It is very significant for the promotion and application of renewable energy.