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。
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.
在空间电压矢量形成PWM波的基础上，通过两个零矢量作用时间的不同分配及调节各矢量作用顺序，形成了不同形式的相电压波形。
Based on the method of SVPWM, various forms of phase voltage waveforms are generated by adjusting the duty time of the two zero vectors and the duty order of every vector.
提出了一种简单的电压空间矢量算法，该算法根据参考电压矢量直接计算电压空间矢量的位置和作用时间，简化了运算过程。
A simplified algorithm is proposed in this paper, which directly calculates the duty cycles of space voltage vector tracking the reference voltage vector.
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