Control of battery banks for wind energy conversion system

Abstract

In this paper, the essential methodology to control the battery banks for a renewable power system is explained. The power converter used for the above is a step-down voltage regulator also known as Buck converter. It can be used to garner power from a small wind turbine. The paper also explains the charging process of the battery to track the point where maximum power output is obtained in a wide range of speed variations and proper circuit parameter design. Smart Management of battery charging and control is crucial since the lack thereof, would affect the battery's performance. This method helps avoid the overcharging and overvoltage and also helps build systems that are economic and efficient. This process helps improve the charging efficiency of the battery, also its performance in terms of degradation rate and lifetime. Simple circuit and high reliability are the key factors in the usage of Buck DC/DC converter. A PMSG Stand-alone Wind Turbine System is also modelled and simulated using MATLAB.