基于可变速率采样的SPWM算法设计及实现  

SPWM Design and Implementation Based on Variable Rate Sampling

作　　者：王宽仁[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《通信电源技术》2008年第5期43-45,共3页Telecom Power Technology

摘　　要：SPWM调制是提高逆变电源电压利用率和减少谐波分量的重要方法。文章依据正弦信号的波形特点,从采样速率转换时刻的确定、采样速率的选择及脉冲换相点的计算等方面详细讨论了可变速率采样的SPWM算法原理和参数选择。最后给出采用STC12C5410AD系列单片机的软、硬件实现。SPWM modulation is the important way to improve the invert power supply voltage efficiency and reduce the harmonic component. Based on the characteristic of the sine wave signal, this paper discusses SPWM algorithm principle and preferences of variable rate sampling in details from the following aspects, identifying the time of sampling rate conversion, selection of the sampling rate and calculation of pulsed phasic exchanged points. FinaIiy, the implementation is given by adopting a series of STC12C5410AD SCM for software and hardware.

关 键 词：可变速率采样 SPWM调制 STC12C5410AD单片机 PCA模块 

分 类 号：TM464[电气工程—电器]