A ZVS bidirectional dc-dc converter with phase-shift plus PWM control scheme

作者：Xiao Huafeng^*; Xie Shaojun

来源：IEEE Transactions on Power Electronics, 2008, 23(2): 813-823.

DOI：10.1109/TPEL.2007.915188

• active clamping
• bidirectional dc-dc converter
• phase-shift plus pulsewidth modulation (PSP)
• pulsewidth modulation (PWM)
• zero voltage switching (ZVS)

The current-voltage-fed bidirectional dc-dc converter, which refers to a current-fed inverter at low voltage side and a voltage-fed inverter at high voltage side, can realize zero voltage switching (ZVS) for the switches with the use of phase-shift (PS) technology. However, the current-fed switches suffer from high voltage spike and high circulating conduction loss. In order to solve these problems, a novel phase-shift plus pulsewidth modulation (PSP) control ZVS bidirectional dc-dc converter is proposed in this paper. By adopting active clamping branch and PSP technology, the converter can realize ZVS for all switches in a wide range of load variation while input or output voltage varies. In addition, a novel control strategy with one port voltage regulation and another port current regulation is proposed to make energy bidirectional conversion freely. The operation principle is analyzed and verified by a 28V/270V conversion prototype rated at 1.5kW

• 出版日期2008-3
• 单位南京航空航天大学