An ultra capacitor(UC) modeling method based advanced physical terminal behavior was proposed. This model with perfect stable and dynamic characteristics according to the actual physical properties was consisted with three parts of the branch circuits, a voltage controlled voltage source serried by a constant capacitance was used in real-time branch circuit to simulate real-time characteristics of super-capacitors. The method to determine model parameters was also proposed. Simulations results show that this model can well reflect the nonlinear charge and discharge behavior and demonstrate self voltage recovery behavior after charge and discharge. This model has been successfully applied to the optimum design of equalization circuit and it is simple enough to be easily applied for simulation of power electronics applications involving UC practically.
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