一族基于正激基本单元的自磁复位正激变换器.pdfVIP

第30 卷 第27 期 中 国 电 机 工 程 学 报 Vol.30 No.27 Sep.25, 2010 2010 年9 月25 日 Proceedings of the CSEE ©2010 Chin.Soc.for Elec.Eng. 49 文章编号：0258-8013 (2010) 27-0049-06 中图分类号：TM 46 文献标志码：A 学科分类号：470·40 一族基于正激基本单元的自磁复位正激变换器 吴红飞，邢岩 (航空电源航空科技重点实验室(南京航空航天大学), 江苏省 南京市 210016) Forward Converters With Inherent Demagnetizing Features Based on Forward Basic Cells WU Hongfei, XING Yan (Aero-Power Science-Technology Center(Nanjing University of Aeronautics and Astronautics), Nanjing 210016, Jiangsu Province, China) [1-12] ABSTRACT: Three basic switching cells including forward 效率，获得了广泛的研究与应用 。正激变压器 positive cell, forward negative cell and forward blending cell of 的磁复位问题是正激变换器特有的问题，针对该问 forward converter with inherent demagnetizing features were 题已经提出了多种解决方案，包括采用辅助变压器 proposed. All cells which consist of switching device, diode 绕组[2] [3] [4] 、RCD 电路磁复位 、LCDD 谐振磁复位 、 and transformer, are the basic building blocks of forward [5] [6] [7] 谐振磁复位 、双管正激 、有源钳位 等各种方式。 converters that use auxiliary diodes to realize natural 其中，双管正激变换器采用两个二极管完成变压器 magnetizing reset. A new method to construct forward topologies, which is based on the concept of basic cells and 的磁复位，电路简单、开关管电压应力低[8-12] 。文 their series and parallel connections, was proposed. The two 献[13]中提出了交错串并联正激变换器，较之双管 switches forward