数学方法是部分子空间法，基于SVPWM的三电平逆变的matlab仿真，有详细的注释，在matlab环境中自动识别连通区域的大小,通过matlab代码。- Mathematics is part of the subspace, Based on SVPWM three-level inverter matlab simulation, There are detailed notes, Automatic identification in the matlab environment the size of the connected area, By matlab code.