基于XC164的三相SPWM技术研究  

Research of three phase SPWM algorithm based on XC164

作　　者：王琪[1] 

机构地区：[1]西安工业大学电子信息工程学院,陕西西安710032

出　　处：《电子设计工程》2011年第16期127-129,共3页Electronic Design Engineering

摘　　要：从SPWM原理出发,利用等效面积补偿法,提出了一种三相SPWM算法。该算法通过对调制函数预先整形的方法来扩展线性范围,使输出基波在调制度M大于1的情况下仍和调制波保持线性关系,提高输出波形的精度。实验结果证明,该算法使具有电压利用率高、谐波损耗小、计算方法简洁的优点。Based on the SPWM theory,a three phase SPWM algorithm with principle of equivalent area compensation is put forward.This algorithm could extend the linear scale by the way of reshaping modulating function in advance,which makes the output fundamental keep linear with the modulation wave while the modulation M is more than 1,and produces a higher precision output waveform.The experiment result shows that the algorithm have these merits： the higher utilization ratio of the voltage,the lower harmonic loss,the simple calculating method.

关 键 词：正弦波脉宽调制 等效面积补偿 调制度 XC164 

分 类 号：TP17[自动化与计算机技术—控制理论与控制工程]