电气工程学报 ›› 2022, Vol. 17 ›› Issue (4): 193-202.doi: 10.11985/2022.04.019

• 电力电子与电力传动 • 上一篇    下一篇

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一种改进型同步整流正激变换器研究*

胡经纬1(), 王久和2(), 曲秋莳1()   

  1. 1.北京交通运输职业学院城市轨道交通学院 北京 100096
    2.北京信息科技大学自动化学院 北京 100192
  • 收稿日期:2022-01-21 修回日期:2022-04-01 出版日期:2022-12-25 发布日期:2023-02-03
  • 通讯作者: 曲秋莳,女,1987年生,硕士,副教授。主要研究方向为电能变换器非线性控制。E-mail:qsq1007@163.com
  • 作者简介:胡经纬,男,1990年生,硕士,讲师。主要研究方向为带恒功率负载的电能变换器的控制。E-mail:827794655@qq.com
    王久和,男,1959年生,博士,教授,博士研究生导师。主要研究方向为电能变换控制、电能质量控制及微电网等。E-mail:wjhyhrwm@163.com
  • 基金资助:
    *国家自然科学基金(51777012);北京市自然科学基金-市委联合(KZ201911232045)

Research on an Improved Synchronous Rectification Forward Converter

HU Jingwei1(), WANG Jiuhe2(), QU Qiushi1()   

  1. 1. School of Urban Rail Transportation, Beijing Vocational Transportation College, Beijing 100096
    2. School of Automation, Beijing Information Science and Technology University, Beijing 100192
  • Received:2022-01-21 Revised:2022-04-01 Online:2022-12-25 Published:2023-02-03
  • Contact: QU Qiushi, E-mail:qsq1007@163.com

摘要:

针对传统同步整流正激变换器效率较低、不适用于宽输入电压场合以及共态导通等问题,提出了一种改进型同步整流正激变换器。改进后的同步整流正激变换器利用辅助绕组两端电压驱动MOSFET管,该变换器效率较高,适用于宽输入电压场合,能够很好地解决共态导通问题。分析了改进型同步整流正激变换器的工作原理、工作模态,建立了改进型同步整流正激变换器的EL(Euler-lagrange, EL)模型,基于无源控制理论,采用阻尼注入方法设计了改进型同步整流正激变换器的无源控制器。无源控制器可使改进后的同步整流正激变换器具有良好的动、静态性能和对负载变化的鲁棒性。仿真及试验结果表明该变换器及其无源控制器是可行的。

关键词: 同步整流, 正激变换器, 无源控制, 阻尼注入

Abstract:

Aiming at poor efficiency, inapplicable for wide input voltage occasion and direct conduction under traditional synchronous rectification forward converter, an improved synchronous rectification forward converter is proposed. The MOSFET of the improved converter is driven by both ends voltage of auxiliary winding. This converter has high efficiency, applicable for wide input voltage occasion and can solve the problem of direct conduction. The operating principle and the operating mode of the improved synchronous rectification forward converter are analyzed. The Euler-lagrange(EL) model of the synchronous rectification forward converter is established. Based on passivity based control theory, a passivity based controller of the improved synchronous rectification forward converter is designed by damping injection method. Good dynamic and static performance and robustness to load change of the improved synchronous rectification forward converter is achieved through the passivity-based controller. The simulation and experimental results show that the converter and its passivity based controller are feasible.

Key words: Synchronous rectification, forward converter, passivity based control, damping injecting

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