一种输入端自然均流/高电压增益组合式变换器研究  

Study on a Combined Converter With Natural Sharing Input-Current and High Voltage Gain

作　　者：石健将[1] 何湘宁[1] 严仰光[2] 

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]南京航空航天大学自动化学院,南京210016

出　　处：《电工技术学报》2005年第3期14-18,共5页Transactions of China Electrotechnical Society

摘　　要：针对航空电源高可靠性和高功率密度的要求,本文提出了一种新颖组合变换器。该组合变换器以双管正激变换器为基本构成单元,具有输入端自然均流、高频变压器一次侧无桥臂直通现象、输入输出电压增益高、高频变压器二次侧输出续流二极管电压应力低、以及控制上保证输入端交错并联而输入和输出滤波器体积小等优点。本文对新颖组合变换器进行分析和仿真,表明该变换器适合应用于输入中高电压、输出高电压和大电流场合;最后成功应用于某型号航空电源,各项技术指标均达到设计要求。A novel combined converter topology is present in this paper to meet the demands of high reliability and high power density in the application of aeronautical power supply. By interleaving two-transistor forward converter modules, the proposed converter has many advantages such as natural sharing input-current, high voltage gain, no phenomenon of direct short circuit in the input DC link, low voltage stress of second-side diodes, small volume of input and output filters and so on. The simulated and experimental results show that the proposed converter is very suitable for high power and/or high voltage applications. It has been successfully applied in a certain aeronautical power supply and all technical data accord with design demands.

关 键 词：双管正激变换器 高电压增益 均流 交错并联 航空电源 

分 类 号：TM401[电气工程—电器] TM462