Title :
Strategy for active power sharing in a fuel-cell-powered charging station for advanced technology batteries
Author :
Jiang, Zhenhua ; Dougal, Roger A.
Author_Institution :
Dept. of Electr. Eng., South Carolina Univ., Columbia, SC, USA
Abstract :
This paper presents a novel real-time strategy for active power sharing in a fuel-cell-powered charging station for advanced technology batteries. This control scheme can adjust the charging currents according to the estimated state-of-charge which is obtained by estimating the battery open-circuit voltage with current correction and linearly fitting between the open-circuit voltage and the state-of-charge. Both DC and pulse current charging strategies are investigated to coordinate the active power distribution among batteries. The DC charging controller is designed and implemented in MATLAB/Simulink for both system simulation and experimental tests. Simulation and experimental results are also given.
Keywords :
battery chargers; electric current control; proton exchange membrane fuel cells; DC charging controller; DC charging strategies; MATLAB/Simulink; PEM fuel cell stack; active power distribution; active power sharing; advanced technology batteries; battery open-circuit voltage; battery open-circuit voltage estimation; charging currents adjustment; current correction; estimated state-of-charge; fuel-cell-powered charging station; pulse current charging strategies; state-of-charge; Battery charge measurement; Circuit simulation; Circuit testing; Computational modeling; Fuel cells; MATLAB; Power distribution; State estimation; System testing; Voltage control;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1218277
