| 基于Z网络的升降压DC/DC变换器 |
| |
| 引用本文： | 齐铂金,杜青,张瑾,马骏. 基于Z网络的升降压DC/DC变换器[J]. 北京航空航天大学学报, 2011, 37(6): 658-664 |
| |
| 作者姓名： | 齐铂金 杜青 张瑾 马骏 |
| |
| 作者单位： | 北京航空航天大学 机械工程及自动化学院, 北京 100191 |
| |
| 基金项目： | 国家863计划资助项目(2006AA11A145) |
| |
| 摘 要： | 基本的非隔离型升降压电路存在由二极管反向恢复带来的短路环问题.设计了一种基于Z网络的升降压DC/DC变换器,从电路结构上避免了短路环的存在,分析了Z网络和变换器的初始态阶跃响应,并设计了预充电电路,消除了变换器启动时的电压和电流尖峰,讨论了工作在电感电流连续模式(CCM, Current Continuous Mode)下的3种开关模态并分析了其工作原理,依照效率最优原则对升压和降压模式的开关模态进行简化,从而优化了变换器的控制方法,提出了一种通过合理选择电感电流纹波系数确保变换器工作在CCM模式下的方法,给出了各元器件的设计规则,并通过仿真和实验加以验证,结果与理论分析相吻合.
|
| 关 键 词： | 升降压变换器 二极管反向恢复 Z源 电感电流连续模式 |
| 收稿时间： | 2010-04-29 |
Novel buck-boost converter based on Z-source |
| |
| Qi Bojin,Du Qing,Zhang Jin,Ma Jun. Novel buck-boost converter based on Z-source[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(6): 658-664 |
| |
| Authors: | Qi Bojin Du Qing Zhang Jin Ma Jun |
| |
| Affiliation: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
| |
| Abstract: | Basic non-isolated buck-boost circuit exists the problem of short-circuit ring caused by the diode's reverse recovery.A buck-boost DC/DC converter based on Z-sourse was designed.The presence of short-circuit ring was avoided from the circuit structure.The step response of initial state of the Z-network and the converter were discussed.The pre-charge circuits was also designed.The voltage and current spikes when the converter started were also eliminated.The three operation modes and operation theory of the ... |
| |
| Keywords: | buck-boost converter diode reverse recovery Z-source CCM(current continuous mode) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京航空航天大学学报》浏览原始摘要信息 |
|
点击此处可从《北京航空航天大学学报》下载全文 |
