说明：  本simulink文件主要包含3部分：1.对传统的SVPWM调制三相两电平逆变器进行仿真，一步一步搭建SVPWM调制模块，包括坐标变换、合成电压矢量扇区判断、基本电压矢量作用时间计算、触发脉冲生成等。2.对SAPWM调制三相两电平逆变器进行仿真，即通过在三相调制波中注入三次谐波的方法来获得和传统的SAPWM等价的效果，从而简化仿真过程。3.利用simulink自带的SVPWM模块以及自带的三相电路模块对上述电路仿真。本文件版本为2018b版本。
(This simulink file mainly contains 3 parts: 1. Simulate the traditional SVPWM modulation three-phase two-level inverter, build the SVPWM modulation module step by step, including coordinate transformation, synthetic voltage vector sector judgment, and basic voltage vector action time calculation , Trigger pulse generation, etc. 2. Simulate the SAPWM modulated three-phase two-level inverter, that is, by injecting the third harmonic into the three-phase modulation wave to obtain the effect equivalent to the traditional SAPWM, thereby simplifying the simulation process. 3. Use simulink's built-in SVPWM module and built-in three-phase circuit module to simulate the above circuit. The version of this document is version 2018b.)