| 一种分布控制系统24V直流电源的实现 |
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| 引用本文： | 唐思文,曾超,李印龙,杨喜军.一种分布控制系统24V直流电源的实现[J].电气自动化,2014(4):19-22. |
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| 作者姓名： | 唐思文 曾超 李印龙 杨喜军 |
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| 作者单位： | 上海交通大学电气工程系,上海200240 |
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| 基金项目： | 本论文得到国家自然科学基金（60934005）和2011年闵行区技术创新项目一企校合作专项（2011MH101）支持 |
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| 摘 要： | 在分析分散控制系统(DCS)供电电源需求的基础上,给出了一种实现方案。采用FAN4803的PFC功能和PWM功能,实现一种带功率因数校正的单相AC-DC变换器,输出直流电压385 V,并获得12 V工作和驱动电源。采用UC3844实现一种385 V~24 V的单端正激DC-DC变换器,最终连续负载能力为500 W。采用均载控制芯片UC3907实现2路N+1冗余设计,连续负载能力为500 W,总负荷能力可达750 W以上。
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| 关 键 词： | 分布控制系统 AC-DC变换器 DC-DC变换器 功率因数校正 单端正激 均载控制 冗余设计 |
Implementation of a 24 V DC Power Supply for Distributed Control Systems |
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| TANG Si-wen,ZENG Chao,LI Yin-long,YANG Xi-jun.Implementation of a 24 V DC Power Supply for Distributed Control Systems[J].Electrical Automation,2014(4):19-22. |
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| Authors: | TANG Si-wen ZENG Chao LI Yin-long YANG Xi-jun |
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| Affiliation: | (Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China) |
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| Abstract: | On the basis of an analysis of the power supply demand of the distributed control system { DCS}, this paper presents an implementation scheme. FAN4803 PFC/PWM functions are utilized to realize a single-phase AC-DC converter with power factor correction, with 385 V DC voltage as well as 12 V working and driving power supply. UC3844 is used to achieve a single-end forward 385 V-24 V DC-DC converter with 500 W final continuous load. UC3907 load-sharing control chip is utilized to accomplish 2 - way N ＋ 1 redundancy design, with a continuous load capacity of 500 W and total load capacity over 750 W. |
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| Keywords: | distributed control system~ AC-I）C converter DC-DC converter power factor correction single-end forward conversion load balancing control redundancy design |
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