Frequency Decoupling-Based Energy Management Strategy for Fuel Cell/Battery/Ultracapacitor Hybrid Vehicle Using Fuzzy Control Method

In order to extend fuel cell lifespan and improve fuel economy of electrical hybrid vehicle with fuel cell/battery/ultracapacitor (FCHEV), a frequency decoupling-based energy management strategy (EMS) for FCHEV using fuzzy control method is proposed. In detail, firstly, according to different charac...

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Bibliographic Details
Published inIEEE access Vol. 8; pp. 166491 - 166502
Main Authors Tao, Fazhan, Zhu, Longlong, Fu, Zhumu, Si, Pengju, Sun, Lifan
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Adaptive filters
Batteries
Consumption
Control methods
Decoupling
Energy efficiency
Energy management
energy management strategy
frequency decoupling
Frequency ranges
Fuel cell electric vehicle
Fuel cells
Fuel consumption
Fuel economy
Fuels
Fuzzy control
Hybrid vehicles
Life span
Power consumption
State of charge
Strategy
Supercapacitors
Wavelet transforms
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Summary:In order to extend fuel cell lifespan and improve fuel economy of electrical hybrid vehicle with fuel cell/battery/ultracapacitor (FCHEV), a frequency decoupling-based energy management strategy (EMS) for FCHEV using fuzzy control method is proposed. In detail, firstly, according to different characteristics of energy sources, required power of FCHEV is decomposed into three frequency ranges based on Harr wavelet transform and an adaptive-fuzzy filter. Secondly, based on the proposed frequency decoupling, the obtained three frequency required power is supplied by fuel cell-battery and ultracapacitor, respectively, which can guarantee power performance of vehicle and reduce pressure and power fluctuation on fuel cell and battery. Thirdly, for improving fuel economy, one fuzzy controller is proposed to split the power between fuel cell and battery. Finally, the proposed strategy in this paper is verified by advisor-simulink and experimental bench. Simulation and experimental results show that the proposed EMS can effectively reduce impact of power fluctuations on fuel cell, extend its lifespan and reduce fuel consumption on 7.94% compared to equivalent consumption minimization strategy.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.3023470