摘要
在数控式AC/AC变频器中,为使其平均输出电压按正弦规律变化,必须对各组晶闸管的触发延迟角进行调制。文中介绍了一种基于DSP芯片控制的三相AC/AC变频器,论述并比较了几种控制方案的优缺点及相关难点问题的解决。
To real time control the average output voltage in sine order in digital cycle-converter, the triggering delay angle of each thyristor have to be modulated. In this paper, a DSP-based three phases AC/AC variable-frequency converter is introduced. The merit and shortcoming of a few control methods and the related difficulties are analyzed.
出处
《通信电源技术》
2004年第4期19-21,共3页
Telecom Power Technology
关键词
AC/AC变频器
DSP
触发角
余弦交点法
三角波调制函数法
cycle-converter
DSP
firing angle
cosine wave-crossing method
triangle-wave modulating function method
