基于SPWM的SVPWM算法

传统的SVPWM算法中存在大量的三角函数和求根运算,不利于数字信号处理器的实时运算。为此提出了一种基于SPWM算法的SVPWM算法,将SVPWM像SPWM那样找出其隐含的调制函数,采用SPWM中调制波与载波相比的规则采样思路,在静止坐标系下直接查表得到每个参考电压矢量所对应的三相调制波的函数值。进而得到每相电压在一个PWM周期中的占空比,有利于数字化的实现。经过Matlab仿真证实隐含调制函数的波形。

The algorithm based on SPWM implementing SVPWM

The traditional SVPWM algorithm, there are a lot of trigonometric functions and beg root operation, go against digital signal processor, therefore the real-time operation is proposed based on SPWM algorithm, the SVPWM algorithm as SPWM that find out the implementing SVPWM modulation of the function, using hidden with carrier modulation wave SPWM compared in the rules in the stationary coordinate system, sampling ideas directly look-up table get each corresponding reference voltage vector modulation wave function value three-phase, then get each phase voltage in a PWM cycle , be helpful for digital realization. Through matlab simulation verify the waveform implied modulation function.