Phase shifted converter realizes zero voltage switching (ZVS) with the use of leakage inductance of the main transformer, however, the realization of ZVS for lagging bridge leg is difficult.
移相控制全桥变换器能够实现开关管的零电压开关，但滞后桥臂难度很大。
2
The method is independent of zero-sequence current's value, inductance compensation situation and harmonics components, so it is effective and robust.
该方法不受零序电流大小、线路补偿情况、谐波强弱等影响，具有较高的理论和实用价值。
3
Because there is no need for acquiring the zero-sequence component, this principle can eliminate the effect of zero-sequence mutual inductance between coupling lines.