Establishment of energy management strategy of 50 kW PEMFC hybrid system

A 50 kW class PEMFC and battery model were evaluated to find appropriate battery capacity for 50 kW class vehicles. Afterwards, fuel cell and battery EMS strategies were established in response to rapid load changes. First, a 50 kW class PEMFC model and a battery model were designed and verified usi...

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Main Authors: Younghyeon Kim, Jaesu Han, Sangseok Yu
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S235248472300104X
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author Younghyeon Kim
Jaesu Han
Sangseok Yu
author_facet Younghyeon Kim
Jaesu Han
Sangseok Yu
author_sort Younghyeon Kim
collection DOAJ
description A 50 kW class PEMFC and battery model were evaluated to find appropriate battery capacity for 50 kW class vehicles. Afterwards, fuel cell and battery EMS strategies were established in response to rapid load changes. First, a 50 kW class PEMFC model and a battery model were designed and verified using the experimental values. After that, the amount of SOC change according to the battery capacity was compared at the same fuel cell output: it was found that the use of a battery with a capacity of “40 kWh” or more is effective. By comparing stack and battery power, hydrogen consumption, and battery SOC according to load changes, it was confirmed that high efficiency of stack net power is not always good thing. In addition, it was confirmed that the most effective strategy is to set the fuel cell-to-battery ratio at 6:4 initially, at 8:2 when the load increases rapidly, and at 4:6 when the load decreases rapidly.
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spelling doaj.art-bdd6f46b898b4df8b90783cc844348f82023-07-13T05:29:20ZengElsevierEnergy Reports2352-48472023-12-01927452756Establishment of energy management strategy of 50 kW PEMFC hybrid systemYounghyeon Kim0Jaesu Han1Sangseok Yu2Department of Mechanical Engineering, Graduate School, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of KoreaDepartment of Mechanical Engineering, Graduate School, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of KoreaSchool of Mechanical Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea; Corresponding author.A 50 kW class PEMFC and battery model were evaluated to find appropriate battery capacity for 50 kW class vehicles. Afterwards, fuel cell and battery EMS strategies were established in response to rapid load changes. First, a 50 kW class PEMFC model and a battery model were designed and verified using the experimental values. After that, the amount of SOC change according to the battery capacity was compared at the same fuel cell output: it was found that the use of a battery with a capacity of “40 kWh” or more is effective. By comparing stack and battery power, hydrogen consumption, and battery SOC according to load changes, it was confirmed that high efficiency of stack net power is not always good thing. In addition, it was confirmed that the most effective strategy is to set the fuel cell-to-battery ratio at 6:4 initially, at 8:2 when the load increases rapidly, and at 4:6 when the load decreases rapidly.http://www.sciencedirect.com/science/article/pii/S235248472300104XProton exchange membrane fuel cellEnergy management systemStack temperatureLoad change
spellingShingle Younghyeon Kim
Jaesu Han
Sangseok Yu
Establishment of energy management strategy of 50 kW PEMFC hybrid system
Energy Reports
Proton exchange membrane fuel cell
Energy management system
Stack temperature
Load change
title Establishment of energy management strategy of 50 kW PEMFC hybrid system
title_full Establishment of energy management strategy of 50 kW PEMFC hybrid system
title_fullStr Establishment of energy management strategy of 50 kW PEMFC hybrid system
title_full_unstemmed Establishment of energy management strategy of 50 kW PEMFC hybrid system
title_short Establishment of energy management strategy of 50 kW PEMFC hybrid system
title_sort establishment of energy management strategy of 50 kw pemfc hybrid system
topic Proton exchange membrane fuel cell
Energy management system
Stack temperature
Load change
url http://www.sciencedirect.com/science/article/pii/S235248472300104X
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