关于超级电容器的一种新型均压技术的研究

Research on a new supercapacitor's voltage equalization technique

为了较好实现均压效果,提出了一种新型的超级电容器均压模型——飞渡电容与电感组合的分级均压技术。此方法采用分级控制的思想,一级采用相邻比较式电感均压,二级采用多飞渡电容均压。详细介绍了该方法的工作原理,并对各个参数计算进行了推导,最后对此方法用MATLAB软件进行了仿真。结果表明该方法极大地提高了均压的一致性、快速性,具有很高的应用价值。

A model for supercapacitor voltage equalizing strategy was introduced in the paper, accordingly, a novel supercapacitor voltage equalizing method having fast equalizing speed and high equalizing precision, namely fly across the portfolio of capacitors and inductors grading technology. The hierarchical control was adopted in this method. The first level use adjoining inductor voltage equalizing method, and the second use flying-capacitor voltage equalizing method. The principle of the method and deriving parameters were introduced. Finally, MATLAB was used to simulate this method. The simulation results show that the inductor voltage equalizing method improves the voltage discrepancy between the supercapacitor modules and the average voltage of serial modules. So the proposed voltage equalizing strategy has a high degree of application value.