摘要
提出一种新的SPWM控制方法 ,采用三角波作为调制信号 ,通过多组双限比较器获得SPWM控制波形 ,根据反馈动态调节比较器的上限和下限实现稳压功能。介绍了基本原理和实际控制电路的组成 。
A new SPWM control method for inverters is presented.The desired SPWM control signal can be obtained using the triangle waveformas the modulating signal through multigroup of comparators. The voltage stabilization is realized by regulating the lower limit and the upper limit of the comparators according to the edback voltage.The basic principle,a test circuit and the experiment results on a 500W UPS are iscussed
出处
《电力电子技术》
CSCD
北大核心
1998年第4期96-98,共3页
Power Electronics
关键词
逆变器
不间断电源
正弦脉宽调制
控制
inverters
uninterruptable power system(UPS)
sine pulse idth-modulation(SPWM)
