开关直流电源并联运行在许多场合应用。每一路电源输出阻抗的不一致性使每一路输出电流难以均衡，影响了系统的可靠性。本文提出了一种双回路ＤＣ—ＤＣ变换器的控制方案。由于采用电压环（外环）和电流环（内环）两环结构的双回路控制模式，变换器输出电流得到了有效控制，便于多个ＤＣ—ＤＣ变换器输出直接并联，从而实现了模块化，具有一定的实用性

In many application, it is often necessary that the switching DC-DC converters operate in paralell. Because the output resisters of the converters are often different, the output current of every DC-DC converters can not be balanced, so the reliability level will reduce. This paper gives the voltage and current control schemes, the output current is effectively controlled, so several DC-DC converters can directly operate in paralell.

TN624.07