正弦脉宽调制(SPWM)算法技术的研究

Study on SPWM Algorithm Technique

常用脉宽调制算法有方波PWM技术和正弦波PWM技术,正弦波PWM(SPWM)主要应用于要求有较高精度正弦波输出的逆变电源中。主要针对常用的SPWM算法进行讨论,介绍了四种根据SPWM技术等效原理形成正弦脉宽调制(SPWM)的算法技术,两种改进型的SP-WM算法,对各种算法的性能进行比较并给出结论。

The square wave pulse width modulation （PWM） and sine wave pulse width modulation （SPWM） techniques are algorithms commonly used for pulse width modulation. The later is mainly applied in the inverse transforming power supply with requirement of high accuracy sine wave output. This article mainly discusses the SPWM algorithm used commonly, and introduces 4 kinds of algorithm tech- nique for forming SPWM based on the equivalent principle of SPWM technique, and then2 kinds of improved SPWM algorithm. Finally, a conclusion is given after comparing performance of various algorithms.