Degradation-Conscious Equivalent Consumption Minimization Strategy for a Fuel Cell Hybrid System

Laeun Kwon, Dae-Seung Cho and Changsun Ahn
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Laeun Kwon: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea
Dae-Seung Cho: Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, Korea
Changsun Ahn: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea

Energies, 2021, vol. 14, issue 13, 1-14

Abstract: The design of an energy management strategy is critical to improving the fuel efficiency of a vehicle system with an alternative powertrain system, such as hybrid electric vehicles or fuel cell electric vehicles. In particular, in fuel cell electric vehicles, the energy management strategy should consider system degradation and fuel savings because the hardware cost of the fuel cell system is much higher than that of a conventional powertrain system. In this paper, an easily implantable near-optimal energy management controller is proposed. The proposed controller distributes power generation between the fuel cell and the battery to simultaneously minimize system degradation and fuel usage. The controller is designed to consider the degradation cost and fuel cost in the framework of the equivalent consumption minimization strategy concept. The proposed controller was validated with a fuel cell electric vehicle model in MATLAB/Simulink (MathWorks, Natick, MA, USA). The proposed control strategy showed significant overall cost reduction compared to a thermostat control strategy and a conventional Equivalent Consumption Minimization Strategy (ECMS) strategy.

Keywords: ECMS; fuel cell; hybrid system; EMS; degradation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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