Authors : M.S. Okundamiya and A.N. Nzeako
Abstract: A detailed analysis of two well-known analytical models, the kinetic battery model and the diffusion model is presented which reveals that the kinetic battery model is a first-order approximation of the more complex diffusion model; both models are well suited for battery life time predictions. In order to optimize their storage capacity, super capacitors are introduced to the renewable energy system which creates a voltage source control that dictates the frequency and AC voltage in the system and mainly responds to sudden energy unbalances while a current source control receives control input from SC voltage difference and mitigates the error-signal in order to fulfill the necessary energy demand on the system.
M.S. Okundamiya and A.N. Nzeako, 2010. Energy Storage Models for Optimizing Renewable Power Applications. International Journal of Electrical and Power Engineering, 4: 54-65.