本文件是一个SPWM逆变器的仿真源文件，可以在MATLAB7.1中直接运行。设计中PWM Generator采用外部调制信号，并在调制信号中注入了三次谐波，很好的抑制了输出谐波，同时提高了直流电源的利用率。-This document is a SPWM inverter simulation source file, you can directly run MATLAB7.1. Design of PWM Generator external modulation signal, and i

SPWM是最常用的一种调制方法，SPWM信号是当改变正弦参考信号的幅值时，脉宽随之改变，从而改变了主回路输出电压的大小。当改变正弦参考信号的频率时，输出电压的频率即随之改变。-SPWM is one of the most commonly used modulation method, the SPWM signal is when the amplitude of the sinusoidal reference signal changes, the pulse width changes

SVPWM是最常用的一种调制方法，SPWM信号是当改变正弦参考信号的幅值时，脉宽随之改变，从而改变了主回路输出电压的大小。当改变正弦参考信号的频率时，输出电压的频率即随之改变。-SVPWM is one of the most commonly used modulation method, the SPWM signal is when the amplitude of the sinusoidal reference signal changes, the pulse width chang

单片机输出调制比，载波比可调的,占空比按照正弦信号变化的PWM波形(MCU output modulation ratio, carrier ratio adjustable, PWM duty cycle waveform changes according to sine signal .)