Supercapacitor’s Parameter Calculation based on Three Branch Equivalent Circuit Model under Different Constant Charging Current

Abstract Supercapacitor is a type of energy storage with higher capacitance value compared to the normal capacitor. But it has lower voltage level However, can be charged high current and provide load when needed same size such as battery. The Three Branch Equivalent Circuit one simple yet accurate model that been proposed. parameter included capacitance, resistance unit dependent capacitance. Parameter calculated accurately depends heavily on terminal supercapacitor at respective time which obtained through charging self-discharging experiment under constant charging. different give effect toward calculation manipulates rate self-discharging. This paper will calculate based result using simulation show accuracy model. throughout study shows especially parameters current.