Energy management strategy based on fuzzy logic for a fuel cell hybrid bus

• Published in: Journal of power sources Vol. 185; no. 1; pp. 311 - 317
• Main Authors: Gao, Dawei, Jin, Zhenhua, Lu, Qingchun
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.10.2008; Elsevier
• Subjects: Applied sciences; Automobiles; Automotive engineering; Battery; Braking; Buses (vehicles); Capacitors. Resistors. Filters; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Energy; Energy management; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cell; Fuel cell hybrid bus; Fuel cells; Fuzzy logic; Strategy; Various equipment and components; Fuzzy logic; Fuel cell hybrid bus; Energy management; Fuel cell; Bus; Costs; Hybrid vehicle; Secondary cell; Combustion; Battery; Supercapacitor; Performance; Energy storage
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2008.06.083

Fuel cell vehicles, as a substitute for internal-combustion-engine vehicles, have become a research hotspot for most automobile manufacturers all over the world. Fuel cell systems have disadvantages, such as high cost, slow response and no regenerative energy recovery during braking; hybridization can be a solution to these drawbacks. This paper presents a fuel cell hybrid bus which is equipped with a fuel cell system and two energy storage devices, i.e., a battery and an ultracapacitor. An energy management strategy based on fuzzy logic, which is employed to control the power flow of the vehicular power train, is described. This strategy is capable of determining the desired output power of the fuel cell system, battery and ultracapacitor according to the propulsion power and recuperated braking power. Some tests to verify the strategy were developed, and the results of the tests show the effectiveness of the proposed energy management strategy and the good performance of the fuel cell hybrid bus.