中文摘要：

以提高直流电压的利用率、降低功率变换系统（PCS）的交流网侧电流波形畸变为目标,介绍了空间电压矢量脉宽调制（SVPWM）的基本理论以及型号为TMS320F2812的数字信号处理（DSP）芯片的内部配置和硬件结构,阐述了数字信号处理器（DSP）生成SVPWM波形的原理和方法,采取合适的基本矢量与零矢量的顺序而组成七段SVPWM波形,将开关损耗和谐波分量尽可能地降到最低。在CCS3.0仿真软件上进行编程,对DSP中所用到的寄存器进行初始化配置,并根据系统的需要选择合适的IGBT模块,设置所需要的安全死区时间,并搭建实物平台对其进行验证实现。结果表明,系统可以很好地输出电压的波形,并表现出较高的电压转换效率。

英文摘要：

In order to improve the utilization of DC voltage and lower AC line-side current waveform distortion of power conversion system（ PCS）,the principle of space vector pulse width modulation（ SVPWM） and the internal configuration and structure of TMS320F2812 digital signal processing（ DSP） chip were proposed. The principles and methods of how DSP generated SVPWM wave in CCS3. 0 simulation software were provided; the appropriate order of the basic vector and the zero vector which formed seven segments SVPWM wave was adopted; switching losses and harmonic components were minimized as much as possible; the registers used in DSP were initialized; the right sort of IGBT module to fit the system was selected;besides,the physical platform had been built to verify its accuracy. Results showed that the system had a well output voltage waveform and a high voltage conversion efficiency.