基于磁集成变换器的超级电容电压均衡研究

发布时间：2018-06-14 22:19

本文选题：超级电容 + 动态电压均衡　；参考：《辽宁工程技术大学》2014年硕士论文

【摘要】：超级电容作为一种绿色环保型的新兴储能元器件,具备充放电速度极快、能反复使用次数极多等多重优点。超级电容器的电压额定值相对较低,使得应用时要将多个串联以满足外设电路的电压需求。超级电容的制造工艺所引起的漏电流、容量偏差和等效串联电阻导致超级电容模块的单体电压失衡。超级电容器模块中的单体电压失衡降低了超级电容器的使用寿命和其能量利用率。在充电过程中,超级电容的单体串联模块必须考虑单体之间的电压是否均衡。本文介绍了一种首尾次序耦合阵列磁集成正激变换器的超级电容均压电路,并分析了电路均压原理和均压影响因素。该均压电路利用次序耦合型变换器次级绕组来实现其电压均衡。次序耦合绕组的应用减小了因变压器单元漏感误差而引起的超级电容单体电压失衡。还给定了变压器单元绕组匝数和变换器占空比之间的关系,以及变压器的设计方法。此外,进行了电路仿真,并对其结果进行了分析,设定了抑制尖峰(绕组电压)的解决方案。仿真与实验结果对理论分析的正确性进行了验证,确实证明了该均衡电路的良好均压性能。
[Abstract]:Supercapacitor, as a green and environment-friendly new energy storage component, has many advantages, such as fast charging and discharging speed, and a lot of repeated use times. The voltage rating of supercapacitor is relatively low, which makes the application of a series of series to satisfy the voltage requirement of the peripheral circuit. The leakage current caused by the manufacturing process of supercapacitor. The capacity deviation and the equivalent series resistance lead to the unbalance of the single voltage of the supercapacitor module. The single voltage imbalance in the supercapacitor module reduces the service life and energy utilization of the supercapacitor. During the charging process, the voltage balance between the monomers of the supercapacitor must be taken into consideration. A supercapacitor voltage equalizing circuit with a first and end sequence coupled array magnetically integrated forward converter, and an analysis of the circuit mean pressure principle and the influence factors of the voltage sharing. The voltage equalizing circuit uses the secondary winding of the sequence coupling converter to realize its voltage equilibrium. The application of the order coupled winding reduces the supercapacitor caused by the leakage inductance of the transformer unit. The relationship between the winding number of the transformer unit and the duty ratio of the converter and the design method of the transformer are also given. In addition, the circuit simulation is carried out, and the results are analyzed. The solution of the suppression peak (winding voltage) is set up. The simulation and experimental results are correct for the theoretical analysis. It is verified that the good voltage sharing performance of the balanced circuit is proved.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM46;TM53

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