New control scheme for AC-DC-AC converter without DC link electrolytic capacitor
New control scheme for AC-DC-AC converter without DC link electrolytic capacitor
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无直流母线电解电容器的AC-DC-AC转换器的新控制方案
DOI：
10.1109/pesc.1993.471913
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
S. Sul
中科院分区：
文献类型：
--
作者：
J. Kim;S. Sul
提出了一种用于交流电机驱动的静态三相到三相功率变换器的新概念，该变换器具有统一的功率因数和降低电网谐波的特点。电源电路由两个背靠背连接的六脉冲桥组成，在直流链路中只有一个5-/spl mu/F陶瓷电容器。通过控制两个桥之间的有功功率平衡，无论负载变化如何，小陶瓷电容器都可以将直流链路电压保持在与标称值相差20 v的范围内
A novel concept for a static three-phase to three-phase power converter for an AC motor drive with unity power factor and reduced harmonics on the utility line is presented. The power circuit consists of two back-to-back connected six-pulse bridges having only a 5-/spl mu/F ceramic capacitor in the DC link. By controlling the active power balance between two bridges, the DC link voltage can be maintained within a 20-V deviation from the nominal value with the small ceramic capacitor regardless of the load variation.<<ETX>>