Research On Operation Of Distributed Photovoltaic Power Station And Pumped Hydro Storage

With the increasingly tight energy supply,the development of modern society requires more renewable energy and clean energy.The development and utilization of these energy sources have a very significant role in promoting economic development.Renewable energy sources such as solar energy are intermittent and random energy sources that are constrained by natural conditions.Therefore,in order to better use new energy forms,it is very important to establish a perfect new energy power generation system for this purpose.Based on this perfect power generation system has an active role in improving the utilization rate of energy.From the current research status,we can see that pumped storage power stations can convert random energy forms and store reliable electrical energy,which effectively reduce the negative impact on the power grid,thereby increasing the stability and reliability of the electrical energy supply of the hybrid system.This paper first analyzes the current status of hydro power and solar photovoltaic power generation.In all renewable energy research and development,hydro power has an important position.From the actual situation,hydro power also has a broader market prospect.From power generation analysis of reserves,the amount of hydroelectric power generation equipment and energy reserves ranks first in the world,and related research is carried out from the operation of hydroelectric power generation systems.The hydro power development system has the characteristics of high efficiency,flexibility and convenient use,so even if the load in the power grid rapid and irregular changes,the applicability of hydro power is still very strong.At the same time,another new form of renewable energy should also attract attention and attention,that is,photovoltaic power generation technology,as the world's fastest growing form of power generation,photovoltaic power generation has become an important project in the current research on renewable energy topics.Secondly,the operating characteristics of pumped storage power stations and solar photovoltaic power stations are introduced,as well as the current development trend and dynamics of the power market.An operation optimization strategy for a combined hydro-storage system based on the power market environment is proposed,and the joint system is selected.The economic benefit in is the objective function,and the sequential quadratic programming algorithm is used to solve the objective function under suitable constraints.In addition,based on xiaojin county,sichuan province,a new joint operation system is proposed,which is based on the original operation system,wind power generation and battery are added,in order to better meet the load demand.This paper first selected two scenarios for simulation analysis.By analyzing the impact of the capacity configuration of the reversible pump turbine and upstream reservoir of the pumped storage power station on economic benefits,the results show that the pumped storage power station The obvious improvement of economic benefits shows that the operation optimization strategy of this combined system of water,light and storage based on the power market environment is feasible and has good practical significance.Then,two kinds of batteries are given as the reserve energy for the new joint operation,objective function and constraint conditions are constructed,and particle swarm optimization algorithm(PSO)is used for the optimization and comparative analysis.It can be seen that the lead-acid battery is more economical,and it also proves that the battery is feasible as the reserve energy for the operation system.