|
|||||
|
|
| 一种新型扩展维持时间前端电压变换器 | |
| 引用本文： | 袁义生,万小伟,张春涛. 一种新型扩展维持时间前端电压变换器[J]. 电力电子技术, 2007, 41(11): 6-8 |
| 作者姓名： | 袁义生 万小伟 张春涛 |
| 作者单位： | 华东交通大学,江西,南昌,330013;上海交通大学,上海,200030 |
| 摘 要： | 针对一次AC/DC电源系统中维持时间需求的问题,提出了一种充分利用储能电容的储能作用,扩展维持时间的前端电压变换器.在市电正常时,该电路工作在传统的功率因数校正(PFC)AC/DC模式,当市电断电时,则切换到维持时间DC/DC升压模式.推导出了维持时间模式下的维持时间与电容储能的关系.变换器结构简单,两种工作模式只需要一个控制系统.在一台2300W整流模块电源上的试验结果表明,提出的电路比传统电路能够扩展维持时间达2.5倍,证明电路是正确有效的. |
| 关 键 词： | 变换器 维持时间/升压电路 |
| 文章编号： | 1000-100X（2007）11-0006-03 |
| 修稿时间： | 2007-06-12 |
A New Front End Converter for Hold-Up Time Extension |
|
| YUAN Yi-sheng,WAN Xiao-wei,ZHANG Chun-tao. A New Front End Converter for Hold-Up Time Extension[J]. Power Electronics, 2007, 41(11): 6-8 | |
| Authors: | YUAN Yi-sheng WAN Xiao-wei ZHANG Chun-tao |
| Affiliation: | 1.East China Jiaotong University, Nanchang 330013, China; 2.Shanghai Jiaotong University, Shanghai 200030, China |
| Abstract: | For the requirement of hold-up time in ac/dc power supply,a new front converter which can makes full use of the capacitor energy to extend hold-up time is proposed.This converter operates in traditional Power Factor Correc-tion(PFC) mode as line is normal.As line shut down,it transfers to DC/DC Boost mode in hold-up time.The relationship be-tween the hold-up time and the capacitor energy is derived in hold-up time.This converter has simple construction.One controller is common used for the two modes.A 2300W AC/DC rectifier was produced.The test waveforms show the hold-up time is extended as 2.5 times as that of traditional converter.This result verified the proposed converter is available. |
| Keywords: | converter hold-up time/Boost converter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |