摘要
常规的移相全桥ZVS控制的变换器,滞后臂较难实现ZVS,同时换流时的环流也会降低变换器的效率。另外,传统的输出全波整流设计,其大电流增加了输出滤波电感和变压器的体积以及整流管上的电压应力,这不利于用在低压大电流输出场合。为此,针对较高输入电压的光伏发电系统,提出了一种适宜于应用在低压大电流输出场合的倍流整流移相全桥ZVZCS变换器拓扑结构,实验验证了电路结构的正确性,并能应用在蓄电池控制器主电路中。
The general shifted ZVS converter is difficulty to realize ZVS for its lagging arm switches, and also the converter＇s efficiency can be reduced by the circular current in the period of the switches commutating. On the other hand, the larger current of the full-wave rectifier makes the size of filler and transformer increased, and at the same time the stress of the rectifier＇s diodes is increased. It is not suitable to be used in the occasion of lower DC voltage and larger current. To overcome those weaknesses, a current ZVZCS converter was proposed to high voltage photovoltaic generating systems. Experimental results confirm the validity of the proposed design, and apply in primary circuit of storage battery controller.
出处
《电气传动》
北大核心
2007年第6期34-38,共5页
Electric Drive
关键词
移相全桥
倍流整流
变换器
光伏发电
phase-shift full-bridge current-double rectifier converter photovoltaic generating
