用S函数实现的SVPWM调制算法，包括S函数原始文件和将S函数添加进去后的Matlab库文件，在仿真模型中可以直接调用。-S function to achieve SVPWM modulation algorithms, including the original file and the S function added to it after the S function of the Matlab library file, the simulation model can be ca