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。
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。
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.
由于该方法中没有用到线路两真个零序分量，消除掉耦合线路之间零序互感对测距的影响。
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