双变压器构架的大功率推挽DC/DC变换器  

High-power push-pull DC/DC converter with double transformer structure

作　　者：张晓曦 张鹏飞 张笑天 ZHANG Xiaoxi;ZHANG Pengfei;ZHANG Xiaotian(China Ordnance Industry 208 Research Institute,Beijing 102202,China;College of Electrical and Control Engineering,Heilongjiang University of Science and Technology,Harbin 150022,China;Beijing Military Representative Bureau,Beijing 102202,China)

机构地区：[1]中国兵器工业第208研究所,北京102202 [2]黑龙江科技大学电气与控制工程学院,黑龙江哈尔滨150022 [3]北京军代局,北京102202

出　　处：《电气应用》2020年第8期83-88,共6页Electrotechnical Application

摘　　要：为了提高系统容量,设计并验证了一种双变压器构架的大功率推挽DC/DC变换器。详细介绍了电路的工作原理、系统结构及其变压器的磁心选型、绕制工艺等设计过程。其次,高频变压器是功率变换器重要的一环,该拓扑采用"前并后串"双变压器的构架模式,可以大大减小单一变压器结构功率不足的问题,且变换效率高。最后搭建一套功率为3 kW的双变压器构架推挽DC/DC变换器试验电路,经测试验证变换器具有较高的效率与实用价值。In order to improve the system capacity, a high-power push-pull DC/DC converter with dual transformer structure is designed and verifed. The working principle of the circuit, the structure of the system and the design process of the core selection and winding of the transformer are introduced in detail. Secondly, the high-frequency transformer is an important part of the power converter, the topology adopts the frame mode of "front parallel and back series" double transformers, which can greatly reduce the power shortage of a single transformer structure, and the conversion effciency is high. At last, a set of push-pull DC/DC converter test circuit with 3 kW power is built, the test shows that the converter has high effciency and practical value.

关 键 词：推挽变换器 高频变压器 双构架设计 

分 类 号：TM46[电气工程—电器]