单移相控制下直流变压器的效率优化和软开关特性优化

近年来,能源需求与不可再生能源短缺的矛盾日渐突出,为了解决这个问题,国家大力发展新能源应用,添加储能系统以提高输出的稳定性,储能系统有充电和放电两种工作模式,要求其接入电路需具备能量双向流动的能力。文章通过调节DC/DC直流变压器的桥间角φ和谐振电感L的大小,减小直流变压器的器件电流应力。

In recent years,the contradiction between energy demand and the shortage of non-renewable energy has become increasingly prominent.In order to solve this problem,the state has made great efforts to develop new energy applications and add energy storage systems to improve the stability of output.The energy storage system has two working modes:charging and discharge,which requires its access circuit to have the ability of two-way energy flow.In this paper,the device current stress of DC transformer is reduced by adjusting the bridge angleφand vibration inductance L of DC/DC transformer.