电源学报2017，Vol.15Issue(1)：75-80,6.DOI:10.13234/j.issn.2095-2805.2017.1.75
半桥变换器与多变压器次级串联的超级电容均压
Voltage Balancing for Supercapacitor Based on Half-bridge Inverter with Transformers Secondary In-series
摘要
Abstract
According to the problem that cell voltage imbalance of series connected super capacitor in energy storage system, this paper presented a voltage-balance circuit for super capacitors in a half-bridge inverter based on with muti-transformer in secondary series method. Muti-secondary coupling method was used in secondary winding of converter to achieve voltage balance of monomer, which can reduce voltage unbalance caused by leakage error in transformer. The circuit topology is simple, to balance super capacitor voltage automatically, and to feedback control climinate when the system is operated with a fixed switching frequency and duty ratio. By analyzing the each working mode of half-bridge converter, the output voltage equations and the super capacitor voltage balance equation are established. According to the circuit characteristics, the design equation of the transformer turns ratio and the leakage inductance of the transformer primary to achieve soft switch are analyzed. The simulation and experimental results show that this equalizing circuit has good features of both speed and pressure equalizing.关键词
半桥变换器/次序耦合/超级电容器/电压均衡Key words
half-bridge inverter/sequence coupling transformer/super capacitor/voltage equalization分类
信息技术与安全科学引用本文复制引用
李洪珠,王俏,张垒,孙佳月..半桥变换器与多变压器次级串联的超级电容均压[J].电源学报,2017,15(1):75-80,6.基金项目
国家自然科学基金资助项目（51177067，50607007）Project Supported by National Natural Science Foundation of China （）
