SPWM波形優化算法及其DSP實現

摘要：本文詳細地討論了開關點預置SPWM控制方案的理論，通過采用13塊波的開關點預置最優SPWM控制方案。采取此種控制方案在滿足輸出性能指標，如提高了輸出電壓質量的前提下，還具有開關頻率低，系統損耗小、系統效率高以及直流利用率高等優點 敘詞：波形發生器 SPWM DSP 開關點預置 Abstract：This paper discusses the theory of switching-node preset optimal SPWM in detail. Further taking the inverter used for main power module as an example, the paper studies a new control strategy of 13-wave-modulation. By the algorithm, the output voltage is promoted, and it makes the inverter has lower switching frequency and smaller loss, and efficiency of the system increased. Keyword：Generator SPWM DSP Switching-node Preset