It is necessary to install flywheel energy storage (FES) system in distributed generation, which can improve the quality and the reliability of electric power. The proposed system is composed of four parts: flywheel, magnetic bearing, motor/generator, and power converter. A permanent magnet motor-generator is incorporated in a composite flywheel, running at high speed in a vacuum containment to minimize air friction losses. The flywheel is to be suspended on magnet bearings. A 3-phase, switch mode bridge inverter, driven by a pulse width modulation board, achieves the variable speed control for the motor/generator and the control for the DC bus voltage. The presentation will explain the schematics of the flywheel battery, control diagram, power electronics and motor/generator. The overall operation will be described.

Volume Subject Area:
Advanced Energy Systems
Topics:
Distributed power generation, Energy storage, Flywheels, Engines, Generators, Motors, Batteries, Bearings, Bridges (Structures), Composite materials, Containment, Electricity (Physics), Electronics, Friction, Magnetic bearings, Magnets, Permanent magnets, Power converters, Pulse width modulation, Reliability, Switches, Vacuum
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Copyright © 2003
 by ASME
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