This report describes the development, fabrication, and test of a regenerative flywheel energy storage and recovery system for a battery/flywheel electric vehicle of the 3000-pound class. The vehicle propulsion system was simulated on a digital computer in order to determine the optimum system operating strategies and to establish a calculated range improvement over a nonregenerative, all-electric vehicle. Fabrication of the inductor motor, the flywheel, the power conditioner, and the system control are described. Test results of the system operating over the SAE J227a Schedule D driving cycle are given and are compared to the calculated value. The flywheel energy storage system consists of a solid rotor, synchronous, inductor-type, flywheel drive machine electrically coupled to a d-c battery electric propulsion system through a load-commutated inverter. The motor/alternator unit is coupled mechanically to a small steel flywheel which provides a portion of the vehicle's accelerating energy and regenerates the vehicle's braking energy. Laboratory simulation of the electric vehicle propulsion system includes a 108-volt, lead-acid battery bank and a separately excited d-c propulsion motor coupled to a flywheel and generator which simulate the vehicle's inertia and losses. This volume summarizes information on the scope of the program, vehicle system studies, the flywheel system design, vehicle power conditioner and control, and test results. (ERA citation 05:038327)


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    Titel :

    Regenerative Flywheel Energy Storage System. Volume I. Executive Summary


    Erscheinungsdatum :

    1980


    Format / Umfang :

    37 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Study of Flywheel Energy Storage. Volume 1. Executive Summary

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    Regenerative Flywheel Energy Storage System

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