Electromechanical batteries: flywheels for temporary energy storage

In the Electromechanical batteries (EMB) a flywheel stores mechanical energy that interchanges in form of electrical energy by means of an electrical machine with a bidirectional power converter. EMB are suitable whenever numerous charge and recharge cycles (hundreds of thousands) are needed with me...

Full description

Saved in:
Bibliographic Details
Published in:Dyna 2008-10, Vol.83 (7), p.440-444
Main Authors: Alzola, Rafael Pena, Fernandez, Rafael Sebastian
Format: Article
Language:Spanish
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the Electromechanical batteries (EMB) a flywheel stores mechanical energy that interchanges in form of electrical energy by means of an electrical machine with a bidirectional power converter. EMB are suitable whenever numerous charge and recharge cycles (hundreds of thousands) are needed with medium to high power (kW to MW) during short periods (seconds). The materials of the flywheel, the type of the electrical machine, the type of the bearings and the atmosphere inside the housing determine the energy efficiency of the EMB. EMB are commercially available with more than a dozen of manufacturers. Amongst the applications of BEM are: uninterruptible power supplies, hybrid power systems, power grids feeding trains, hybrid vehicles and space satellites.
ISSN:0012-7361