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首先从理论上阐述电压矢量轨迹ＰＷＭ控制原理，建立了数学模型，提出了用电压矢量逼近理想磁链圆的方法，给出了任一分割方式的逼近路径，得到逆变器开关状态表，最后设计该控制的最佳硬件和软件，以实现对逆变器的控制．
Firstly, the principle of voltage vector trace PWM control is expounded in theory. A mathematical model is established. A method of approximating ideal flux circle by voltage vector is proposed. An approximation path of any segmentation method is given, and the switch state table of inverter is obtained. Finally, Design the best hardware and software for this control to enable control of the inverter.