This study focuses on the use of the Polymer Electrolyte Membrane Fuel Cell (PEMFC) hybrid system, which consists of a generator, a supercapacitor, and a battery, to obtain regenerative energy. The fuel cell is a Nexa™ Power Module of Ballard Power Systems Inc., and the battery is a Ni-MH battery of Global Battery Co., Ltd. The supercapacitor, which features an excellent power density and capacity of 30 V and 100F, can minimize its power consumption via a cell balancing circuit. This study aimed to evaluate the characteristics of regenerative energy and suggest solutions to increase regenerative energy using a vehicle simulation. In this study, the rated RPM of the motor was set to 3000 RPM which was reliable motor speed. Because the flywheel was connected directly to the motor, the flywheel speed was set to 3000 RPM to save the maximum kinetic energy. The motor stops and the generator activate regenerative braking using the energy of the flywheel when the flywheel reaches the set speed. Upon activation, the characteristics of regenerative braking, including the voltage, current, power, and energy change, can be obtained. The storage efficiency of the supercapacitor or the battery can be calculated from the stored energy. The experimental results exhibited five characteristic intervals when the regenerative braking energy, which is generated from the generator, is stored in the supercapacitor. Twenty-one percent of the regenerative energy was stored in the supercapacitor, and 15% was stored in the battery. The supercapacitor outperforms the battery in storing regenerative energy because its response speed is faster.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The characteristics of regenerative energy for PEMFC hybrid system with additional generator


    Contributors:

    Published in:

    Publication date :

    2014


    Size :

    8 Seiten, 17 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Regenerative braking for fuel cell hybrid system with additional generator

    Kim, Seon-Hak / Kwon, Oh-Jung / Hyon, Deoksu et al. | Tema Archive | 2013



    PEMFC ENERGY MANAGEMENT SYSTEM FOR HYBRID ELECTRIC TRAM DRIVEN BY DUAL PEMFC AND BATTERY

    AHN KYOUNG KWAN / DO TRI CUONG | European Patent Office | 2023

    Free access

    Vehicle equipped with regenerative generator

    MORISAKI KEISUKE / HOKOI KOUJI | European Patent Office | 2016

    Free access

    PHOTOVOLTAIC POWER GENERATOR AND ADDITIONAL ELECTROCHEMICAL ENERGY STORAGE IN HYBRID VEHICLES

    Yianoulis, P. / Myrsini, G. / European Association for Battery, Hybrid and Fuel Cell Electric Vehicles. Vehicles | British Library Conference Proceedings | 2007