Skip to Main content Skip to Navigation
Theses

Energy consumption minimization strategy for fuel cell hybrid electric vehicles

Abstract : Global warming, environment pollution and exhaustion of petroleum energies have risen their attention of the humanity over the world. Fuel cell hybrid electric vehicle (FCHEV) taking hydrogen as fuel and have zero emission, is thought by public and private organisms as one of the best ways to solve these problems. This PhD dissertation consider a FCHEV with three power sources: fuel cell, battery and supercapacitor, which increases the difficult to design an energy management strategy (EMS) to split the power between the different power sources.Among the EMS available in the current literature, the Equivalent consumption minimization strategy (ECMS) was selected because it allows a local optimization without rely on prior knowledge of driving condition while giving optimal results.Due to low energy density of supercapacitor, its equivalent hydrogen consumption is neglected in most bibliographic references, which not only counter to the aim of minimizing whole hydrogen consumption but also increase the complication of EMS due to the need of an additional EMS to calculate supercapacitor power demand. Thus, a sequential quadratic programming ECMS (SECMS) strategy is proposed to consider energy cost of all three power sources into the objective function. A rule based control strategy (RBCS) and hybrid strategy (HEOS) are also designed in order to to be compared with SECMS. Degradation of energy sources represents a major challenge for the stability of the developed SECMS system. So, based on online estimating state of heath of fuel cell and battery, an adaptive ECMS (AECMS) has been designed through adjusting the equivalent factor and dynamical change rate of fuel cell. The simulation results show that the AECMS can ensure the charge sustenance of battery and the increase of fuel cell durability.To validate the proposed energy management algorithms and the numerical models an exerimental test bench has been built around the real time interface DSPACE. The comparison of the simulation and experimental results showed that the proposed SECMS is operated at around maximum efficiency, supercapacitor supplies peak power, battery works as the energy buffer. It has been proved that the neglect of supercapacitor equivalent hydrogen consumption in ECMS leads to not optimal operation. Compared with RBCS and HEOS, SECMS has least hydrogen consumption and most stable fuel cell current.
Document type :
Theses
Complete list of metadatas

Cited literature [282 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-02084175
Contributor : Abes Star :  Contact
Submitted on : Friday, March 29, 2019 - 2:29:16 PM
Last modification on : Tuesday, October 20, 2020 - 11:26:27 AM
Long-term archiving on: : Sunday, June 30, 2019 - 2:52:20 PM

File

These_LI_UTBM.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02084175, version 1

Citation

Huan Li. Energy consumption minimization strategy for fuel cell hybrid electric vehicles. Other. Université Bourgogne Franche-Comté, 2018. English. ⟨NNT : 2018UBFCA034⟩. ⟨tel-02084175⟩

Share

Metrics

Record views

848

Files downloads

436