三相鞍形PWM波形数据的迭代计算法  

Iterative Algorithm of three-phase PWM Waveforms Data in Nonsinusoidal Modulation

作　　者：邱燕雷[1] 宫金武[2] 查晓明[2] 

机构地区：[1]福建水利电力职业技术学院,福建永安366000 [2]武汉大学电气工程学院,湖北武汉430072

出　　处：《榆林学院学报》2007年第6期32-34,共3页Journal of Yulin University

摘　　要：在三相PWM逆变器中注入零序谐波电压分量是提高逆变器直流侧电压利用率的一种有效方法,提出一种基于波形重构技术的迭代计算方法,用以产生三相鞍形PWM波形数据。该算法适合计算机编程自动生成,而且计算结果接近空间矢量控制算法效果,具有一定的实用意义。Injection of zero- sequence harmonics to three -phase PWM inverter can extend the linear modulation range for line - to - line voltage. This paper proposes an off - line iterative algorithm based on signal reconstruction technique for generation of nonsinusoidal three - phase PWM waveforms. The algorithm is suitable for computer - based programming and the results are much close to those of Space vector PWM （SVPWM）. The viability of the algorithm is justified through theoretical analysis and practical calculation.

关 键 词：PWM逆变器 鞍形波 迭代算法 直流利用率 

分 类 号：TP92[自动化与计算机技术]