摘要
以六脉波交交变频器为实验平台,在双变量余弦交截法控制的基础上,提出了非整数分频的平均周期法,寻找一种合适的触发时刻规律改善电压、电流波形的正弦度和对称性,从而来实现交交变频调速的级差足够小的连续、平稳运行。通过理论推导并利用Matlab/Simulink建立仿真模型进行分析,实现了六脉波交交变频调速系统的全开环、无环流、无死区的连续平稳调速。
As the experiment platform, using the Six-pluse ac-ac converter and on the basis of double-variable control theory, it puts forward the average cycle law in order to find a suitable moment to trigger the Thyristors. The result will improve the voltage and current waveforms Sine and symmetry, thereby to achieve speed governor continuous, smooth operation with step small enough. A stimulation modle was constructed based on Matlab/Simulink software. The stimulation results shows that Six-pluse ac-ac converter ...
出处
《电气技术》
2009年第7期40-42,共3页
Electrical Engineering
关键词
六脉波
交交变频
级差
平均周期法
仿真
six-pluse
ac-ac converter
step
the average cycle law
Simulink
