摘要
提出了一种新颖的辅助谐振变换极三相PWM变流器拓扑结构。该拓扑结构较传统辅助谐振变流器简单,控制方便。文章分析了PWM控制方式、零电压谐振的工作模式,并对谐振电路和谐振条件进行了数学推导。仿真研究结果表明,该变流器在单位功率因数运行的情况下,能够实现零电压开关动作。
A novel auxiliary resonant commutated pole (ARCP) for three-phase PWM voltage-source converters is presented. The ARCP link consists of two auxiliary switches, one resonant inductance, six diodes. Its topology is simpler than the conventional ARCP ones. The ARCP converter is based on phase and amplitude control, in addition it takes a minimum switching times PWM method, all makes the system with lower loss and easy to control. The PWM control strategy and zero -voltage resonant working modes are analyzed, a mathematical model for the resonant circuit is built and the relevant resonant conditions are deduced. Simulation results show that the system can realize zero-voltage switching with a unity power factor.
出处
《电工技术学报》
EI
CSCD
北大核心
2005年第2期69-75,共7页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(59977012)
台达电力电子科教发展基金资助项目。
