一种基于有源箝位SEPIC拓扑的航空电子变换器  

A Novel Aeronautic AC/DC Converter Based on Active-Clamped SEPIC

作　　者：方宇[1] 邢岩[1] 赵修科[1] 

机构地区：[1]南京航空航天大学航空电源航空科技重点实验室,210016

出　　处：《电工技术学报》2003年第3期36-40,共5页Transactions of China Electrotechnical Society

摘　　要：提出了一种适合航空电源应用的单级单开关有源功率因数校正变换器 ,应用有源箝位技术改进了传统的SEPIC拓扑。详细分析了新拓扑的特点和工作原理 ,给出了实现零电压开关的条件。实验结果验证了理论分析结果 ,并采用单层变压器设计 ,使变换器的效率达到 90 %。A novel aeronauitc single-stage single-switch active power factor correction converter is proposed,which is an improved SEPIC topology operating in zero-voltage switching with the active clamp cell.The operation principle of the proposed converter is analyzed in detail with design method.At last,a 100W prototype converter with average current control is built and verified.High efficiency up to 90% is achieved with the help of an optimized single layer transformer.

关 键 词：电力电子变换器 有源功率因数校正 零电压开关 拓扑 

分 类 号：TM919[电气工程—电力电子与电力传动]