Research On Optimization Of Energy Storage System In Micro Grid For Desert Irrigation

With the rapid consumption of the world’s non-renewable energy sources, wind and solar power as a new clean energy, has attracted widespread attention. However, due to its instability and discontinuity defects,energy storage system installed in the micro-grid system is essential.Firstly, this paper has briefly introduced operating characteristics and advantages and disadvantages of the micro-grid system architecture in the stage. Having a mathematical modeling for permanent magnet direct drive wind turbines and photovoltaic panels, simulation in Matlab/Simulink and verify its characteristics of power output under the weather conditions affect. Secondly, propose the control strategy of energy storage device’s charging or discharging process and control measures of hybrid energy storage system in the energy distribution of charge and discharge. Then research of micro-grid system for determining the minimum storage capacity methods, obtained a minimum storage capacity of desert irrigation system combined with practical examples. Finally, based on the needs of the desert irrigation systems distributed generation and load selected basic parameters, As the cost of energy storage devices and the impact on the economic costs of micro-grid running supply reliability for the optimization objective function,as the SOC of hybrid energy storage, output of each micro-sources and the required minimum capacity energy storage device for constraint conditions,have a optimal solution hybrid energy storage devices capacity for micro grid system by PSO.