Analysis of Energy Storage sizing and technologies

This paper performs a sensitivity analysis of varying Energy Storage System (ESS) sizes and technologies in an isolated wind-diesel power system. Energy Storage Systems have been proposed in order to improve the penetration of Renewable Energy (RE) sources to microgrids. The main goal of this paper is to identify, from an economic point of view, the optimal ratings and technologies for reducing the total cost of the operation of the system. A Knowledge Based Expert System Controller, which has been shown to yield minimized energy costs for a wind-diesel microgrid, is implemented to control the charging/discharging of the ESS, the diesel generation, and the dump load.