中文摘要：

超级电容器在使用中的电压平衡性能很重要。为了研究不同的电压平衡电路对超级电容器模组充放电性能的影响,用蒙特卡罗方法模拟模组单体参数的分散情况,对两种不同的平衡电路分别用MATLAB进行仿真。结果表明：在相同的参数条件下,动态均压平衡电路比开关电阻平衡电路的电压平衡效果要好。用开关电阻法时,若开关提前动作,则模组单体电压的方差及过压次数显著减小;用动态均压方法时,放电电流越大,电压平衡速度就越快,充放电后单体端电压也就越集中。因此,开关电阻平衡电路中,开关提前动作可明显提高平衡效果;动态均压平衡电路中,选择与容值分散度相匹配的平衡系数可使平衡效果较好。

英文摘要：

The balance performance of super-capacitor is very important when super-capacitor is used in module.In order to study the influence of different balance circuits on module charging performance,A MATLAB simulation of two different charge balancing circuits was carried out on the super-capacitor module,with the Monte Carlo method simulating dispersion of parameters.The results show that in the same parameter conditions,the dynamic voltage balancing circuit has higher energy utilization efficiency,the switch resistance balancing circuit is easier to control the charge process,but its voltage balancing effect is not as good as effect of dynamic balancing circuit.With the resistance balancing method,if switch is active in advance,the variance of modular single voltage and number of overvoltage reduce significantly.With the dynamic voltage balancing method,the discharge current increases,the voltage of individual super-capacitor becomes more quickly balanced and concentrated.Consequently,with the resistance balancing method,making the switch active in advance can significantly improve the balancing effect;with dynamic voltage balancing method,designing an appropriate equilibrium coefficient which coordinates with the value of the super-capacitor can reach a better state of balance effect.