Title :
A PEMFC/Battery Hybrid UPS System for Backup and Emergency Power Applications
Author :
Zhan, Yuedong ; Zhu, Jianguo ; Guo, Youguang ; Wang, Hua
Author_Institution :
Kunming Univ. of Sci. & Technol., Kunming
Abstract :
This paper presents the development of a proton exchange membrane fuel cell (PEMFC) and battery hybrid uninterruptible power system (UPS) for backup and emergency power applications. A sixty-cell PEMFC stack is employed as the main power source at normal load and a 3-cell lead-acid battery is employed as the auxiliary power of the UPS at overload or during the PEMFC startup. The PEMFC consists of two valves for the hydrogen input and output respectively, a mass flow controller to adjust the hydrogen mass flow, and a pressure sensor to control the hydrogen pressure, and their control units for the management of the whole system. The design procedures of the UPS hybrid system are discussed. Experimental setups are presented and the experimental results verify the performances of the PEMFC/battery hybrid power source and the UPS system under the condition of computer load. The developed UPS system proves to be a cost-effective solution for backup and emergency power applications.
Keywords :
battery storage plants; hybrid power systems; lead acid batteries; proton exchange membrane fuel cells; uninterruptible power supplies; 3-cell lead-acid battery; PEMFC; UPS system; auxiliary power; backup power application; battery hybrid uninterruptible power system; emergency power application; hydrogen mass flow; hydrogen pressure control; mass flow controller; pressure sensor; proton exchange membrane fuel cell; Batteries; Biomembranes; Control systems; Fuel cells; Hydrogen; Pressure control; Protons; Uninterruptible power systems; Valves; Weight control; Backup and emergency power applications; fuel cell/battery hybrid power source; proton exchange membrane fuel cell (PEMFC); uninterruptible power supply (UPS);
Conference_Titel :
Power Electronics and Drive Systems, 2007. PEDS '07. 7th International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0645-6
Electronic_ISBN :
978-1-4244-0645-6
DOI :
10.1109/PEDS.2007.4487906