Diagram 1: Evolution of leakage current as a function of test voltage.
图1漏电电流随电压变化的函数图。
By getting the direction function from the output AC current, the applied time of voltage vectors in one PWM period was chosen, the direction of central current was controlled for DC voltage balance.
该方法通过实时检测三相交流输出电流方向得到方向函数，利用该函数选择一个PWM周期内不同电压矢量作用时间来控制中点电流的方向，实现电压平衡。
Nonlinear load a nonlinear load is a load for which the relationship between voltage and current is not a linear function.
非线性负载电压和电流之间是非线性关系的负载称为非性形负载。
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