摘要
近年来LLC谐振变换器和三电平技术得到了广泛关注。提出了以TMS320F2801为控制核心的三电平LLC谐振型直流变换器。该变换器采用PI数字变频与PWM控制相结合的方案实现。样机试验结果证明,该变换器具有全负载范围内损耗小,效率高,动态稳定性好等优点。
LLC resonant converter and three-level technology are widely focused on recently years.This paper presents three-level LLC serial-resonant converter based on TMS320F2801 digital controller and the strategy＂ of the digital PI variable frequency plus PWM control.Finally,experimental waveforms of prototype are illustrated.The merits of converter can be proved as follows, less loss with full load, high efficiency and good dynamic characteristics.
出处
《电力电子技术》
CSCD
北大核心
2007年第9期53-54,共2页
Power Electronics
关键词
变换器
数字控制
变频
脉宽调制/三电平
converter
digital control
variable frequency
pulse width modulation /three-level
