| 基于DSP的DC/DC Boost PFC模块的并联交错控制研究 |
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| 引用本文： | 蒋志宏,黄立培,孙晓东,郭宇婕.基于DSP的DC/DC Boost PFC模块的并联交错控制研究[J].电工电能新技术,2004,23(3):27-30. |
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| 作者姓名： | 蒋志宏 黄立培 孙晓东 郭宇婕 |
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| 作者单位： | 清华大学,北京,100084;光宝电子北京电力电子实验室,北京,100085 |
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| 摘 要： | 本文提出了一种简单的PFC模块并联交错数字控制方案.以三个模块并联为例,利用平均电流控制策略,仅用一个控制器实现了DC/DC Boost PFC模块的并联控制,开关频率为120kHz,取得了良好的均流性能,降低了功率开关管的电流应力;同时,使它们的高频开关相位均匀错开120°,实现了电感电流的交错,减小了输入电流的高频纹波,减小了输入EMI滤波器的差模电感.实验结果证明了该控制方案的可行性,为并联的功率因数校正模块的数字控制提供了一个良好的解决方案.
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| 关 键 词： | 功率因数校正 并联交错 Boost 数字控制 |
| 文章编号： | 1003-3076(2004)03-0027-04 |
| 修稿时间： | 2004年2月10日 |
DSP-based parallel-connected interleaving DC/DC boost PFC module |
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| JIANG Zhi-hong,HUANG Li-pei,SUN Xiao-dong,GUO Yu-jie.DSP-based parallel-connected interleaving DC/DC boost PFC module[J].Advanced Technology of Electrical Engineering and Energy,2004,23(3):27-30. |
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| Authors: | JIANG Zhi-hong HUANG Li-pei SUN Xiao-dong GUO Yu-jie |
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| Affiliation: | JIANG Zhi-hong~1,HUANG Li-pei~1,SUN Xiao-dong~2,GUO Yu-jie~2 |
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| Abstract: | This paper presents a simple method based on DSP to achieve high power factor, small current-stress of switch, small input-current ripple and differential-mode inductor. Take three PFC modules in parallel for example in this paper, the parallel-connected interleaving DC/DC boost PFC modules with the switching frequency of 120kHz are realized with only a digital controller, and it has a good current-sharing performance and small current-stress of switch. In addition, the high-frequency switching phases are interleaved with 120 degrees for small high-frequency ripple of input current. The paralleling and interleaving controller is validated with experimental results, and a desirable digital solution is presented for the paralleling PFC modules in large power application. |
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| Keywords: | Boost |
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