Fuel Cell/ Super-capacitor power management system assessment and Lifetime Cost study in a 500kVA UPS

Imen Ben Amira, Abdessattar Guermazi
2018 Advances in Science, Technology and Engineering Systems  
A 500 KVA Uninterruptible power supply (UPS) using Fuel Cells (FC) and supercapacitors (SCs) was studied with the worst case of 10 minutes and eight hours of interruption per day. A power management system was established to control the FC and the SCs in order to extract the hybridization benefits with a comparison between a Proton exchange membrane FC (PEMFC) working alone and another combined with SCs. Moreover, possible FC degradations were discussed. The start/stop cycling, the high-power
more » ... g, the high-power loads and load changes degradations were taken into consideration in order to estimate the FC lifetime span using a prediction formula. Besides, the FC costs were studied to estimate the best average cost. Finally, the SCs filter constant time and their charging currents were revealed.
doi:10.25046/aj030226 fatcat:unng2hvwsjgi3kwwmg33cktn5y