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-lb 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 reports the theoretical and experimental studies which were performed and the results of these studies. (ERA citation 05:038328)
Regenerative Flywheel Storage System. Volume II. Final Report
1980
226 pages
Report
No indication
English
Road Transportation , Miscellaneous Energy Conversion & Storage , Flywheel energy storage , Flywheel-powered vehicles , Hybrid electric-powered vehicles , Computerized simulation , Control equipment , Design , Electric generators , Experimental data , Fabrication , Feasibility studies , Performance testing , Research programs , ERDA/330300 , ERDA/330500 , ERDA/330400
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