基于DSP Builder的SVPWM算法设计及应用

Design and Application of SVPWM Algorithm Based on DSP Builder

主要研究了空间矢量脉宽调制算法的基本原理,利用新方法—DSP Builder提供的功能模块库,搭建了SVPWM模块,并组建了恒压频比控制系统。在Simulink仿真环境下,完成算法的验证。最后将此控制系统仿真模型转换成VHDL语言,下载至FPGA中,用来控制一台永磁同步电机的低速运转。实验结果表明所设计的SVPWM功能模块正确,电机速度控制精度高,性能好,且采用DSP Builder设计系统,可以简化设计流程,加快研究速度。

The working principle of space vector pulse width modulation was mainly studied. The SVPWM algorithm module was generated by DSP Builder, and then a constant proportion of voltage to frequency control system was construc- ted. It uses the application of MATLAB/Simulink to simulate and verify the correctness of SVPWM algorithm. Finally ,this simulation system was converted to VHDL language and download to one-chip FPGA. The method was applied to control one permanent magnet synchronous motor running at low speed. The experimental results show that the design is valid and can get excellent operating performance. Furthermore, the method of DSP Builder can simplifies the design process and ac- celerated the speed of research.