Research on Voltage Equalization Strategy of Super Capacitors in Series Based on Ferry Capacitors
Super capacitors have the characteristics of large capacity, large charge and discharge power, and long life. However, when super capacitors are in series parallel, there is the problem of voltage imbalance, which leads to the problem of overcharge and undercharge of single super capacitors, making the utilization rate of super capacitors insufficient, and even damage the super capacitor. In this paper, a series voltage equalization circuit of super capacitors using electrolytic capacitors as flying capacitors was designed. Electrolytic capacitors were used as the medium of mutual charge and discharge between super capacitors, and then the voltage at both ends of each super capacitor is constant. In order to verify the method proposed in this paper, a simulation model was built. The simulation results show that the method can achieve the same voltage at both ends of the super capacitor.
super capacitorferry capacitorvoltage equalization
万方数据
维普
