一种等面积法生成SPWM波形的算法

摘要

针对自然采样法计算量大,难以做到实时控制;查表法占用大量内存,调速范围有限;规则采样法的计算量相对自然采样法小得多,但存在一定的误差的诸多问题,提出了一种等面积法生成SPWM波形的算法.该方法运用了冲量相等而形状不同的窄脉冲加在具有惯性的环节上时,其效果基本相同这一理论,运用面积等效法进行计算,采用C语言进行设计实现从而输出SPWM波形.%For natural sampling method is large amount of calculation, hard real - time control; Querying method occupy a lot of memory, range of speed limited; Rule sampling method of computations relative natural sampling method is much smaller, but there are certain error problems. Puts forward a kind of method of generating SPWM wave algorithm. This method USES the impulse of different shapes of equal and narrow pulses add in the link with inertia, its effect is basically the same this theory, using area as computed using C language design realize thus output SPWM wave.