Research On Capacity Configuration Of Second-use Retired Power Batteries In Wind-solar Energy Storage System

The integration of wind energy and solar energy and other renewable energy power generation systems for large-scale development and comprehensive utilization is an important way to effectively solve today’s social energy crisis and serious environmental pollution.However,when this renewable energy power generation system is connected to the grid,its power supply is often extremely intermittent,and its output is easily affected by natural environmental factors.Therefore,how to effectively control and suppress the power output and grid-connected fluctuations of large-scale wind power and photovoltaic power generation,and improve the characteristics of grid-connected operation is a very important academic research topic.Research has shown that in a large-scale intermittent renewable power system,by reasonably configuring and using energy storage batteries of appropriate capacity,and then using a reasonable power control strategy,it is possible to effectively control and suppress the intermittent renewable power when connected to the grid Possible power fluctuations,thereby effectively improving the power quality of renewable power sources.Considering that in today’s society,more and more retired power batteries need to be recycled,if the retired power battery ladders are used in the field of energy storage,the construction cost of the energy storage system can be significantly reduced,which can promote and promote the field of energy storage.The healthy and sustainable development also has very good social and economic benefits.Based on the use of decommissioned power battery ladders in energy storage systems,the optimal capacity allocation model of the wind-solar energystorage system is established.The minimum economic operating utilization cost of the wind-solar storage system is used as the target calculation function of the model and the improved catfish particle swarm algorithm Optimize and solve the model,and then combine the examples to compare the conventional particle swarm algorithm and the improved catfish particle swarm algorithm.The analysis results show that when the capacity configuration is the same,the improved catfish particle swarm is used.The algorithm has better advancement and economy when solving the optimal scheduling problem of wind and solar storage systems.