【摘要】 该文分析了输入串联输出并联的双全桥变换器输入不均压输出不均流的原因;提出了一种具有三个闭环的交错控制策略,均压环的输出分别校正两个电流内环的给定值,使输入电压高的模块输出电流变大,输入电压低的模块输出电流变小,从而实现该变换器输入电压均分和输出电流的均流;同时交错控制下的电流纹波抵消效应使输出滤波容得到了减小,论文最后给出了仿真和实验结果,以验证该方法的有效性。更多还原

【Abstract】 This paper analyzes the reasons resulting in un-sharing voltage and un-sharing current of the input-series output-parallel full-bridge converter,aiming at them,a control strategy with three-PI-loop is proposed,output of the input sharing-voltage loop revises the given value of the current inner loop,the output current will increase in the FB converter with high input voltage,and decrease in another converter with low input voltage,as a result,the balancing of the input voltage and output current is obtained;at the same time,the canceling effect of the current wave reduces the filter capacitor for the interleaving control;the simulation and experimental results are presented to verify the effectiveness of the proposed method.更多还原