中文摘要：

针对空间电压欠量脉宽调制过程中存在的问题，采用理论推演与软件设计方法，在介绍了SVPWM的基本原理的基础上，利用TI公司的DSP电机控制芯片TMS320LF2407设计了SVPWM的实现方法，并给出了变频调速系统的全数字化实现。通过对永磁同步电机进行控制仿真实验，得到的结果表明此方法是切实可行的，控制系统具有优良的动静态性能，较高的控制效果，有广泛的应用前景。

英文摘要：

In view of the problem of SPWM, the theoretic illustration and software design method is used. In addition to the introduction of the basic principle of SVPWM ,the method of realizing SVPWM by TI＇ s DSP motor controller TMS320LF2407 is designed, and a full-digital solution of SVPWM control is presented. The results of experiments with PMSM indicate that the proposed method is feasible and the control system has excellent dynamic and static performances and high control effect, which has broad application prospects.