Intelligent uninterruptible power supply system with back-up fuel cell/battery hybrid power source
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- 作者：Yuedong Zhan ; Youguang Guo ; Jianguo Zhu ; Hua Wang
- 关键词：Uninterruptible power supply ; Proton-exchange membrane fuel cell ; Lead– ; acid battery ; Hybrid power source ; Back-up and emergency power ; Intelligent control
- 刊名：Journal of Power Sources
- 出版年：2008
- 出版时间：1 May 2008
- 年：2008
- 卷：179
- 期：2
- 页码：745-753
- 全文大小：1699 K
文摘
This paper presents the development of an intelligent uninterruptible power supply (UPS) system with a hybrid power source that comprises a proton-exchange membrane fuel cell (PEMFC) and a battery. Attention is focused on the architecture of the UPS hybrid system and the data acquisition and control of the PEMFC. Specifically, the hybrid UPS system consists of a low-cost 60-cell 300 W PEMFC stack, a 3-cell lead–acid battery, an active power factor correction ac–dc rectifier, a half-bridge dc–ac inverter, a dc–dc converter, an ac–dc charger and their control units based on a digital signal processor TMS320F240, other integrated circuit chips, and a simple network management protocol adapter. Experimental tests and theoretical studies are conducted. First, the major parameters of the PEMFC are experimentally obtained and evaluated. Then an intelligent control strategy for the PEMFC stack is proposed and implemented. Finally, the performance of the hybrid UPS system is measured and analyzed.