NDLI: Conceptual system design of a 5 MWh/100 MW superconducting flywheel energy storage plant for power utility applications

Content Provider	IEEE Xplore Digital Library
Author	Bornemann, H.J. Sander, M.
Copyright Year	2002
Abstract	The authors have designed a 5 MWh/100 MW superconducting flywheel energy storage plant. The plant consists of 10 flywheel modules rated at 0.5 MWh/10 MW each. Module weight is 30 t, size is /spl phi/ 3.5 m/spl times/6.5 m high. A synchronous type motor-generator is used for power input/output. Each flywheel system consists of four disk modules made from a carbon fibre composite material, rated at 125 kWh and weighing 3 t. Passive superconducting bearings, integrated into the disk modules, are used for frictionless levitation. The operating speed will be in the 2250...4500 RPM range. Maximum rim velocity is 600 m/s with a maximum tensile stress of 810 MPa. Details of the system layout are discussed, addressing thermal design and subsystems such as power conditioning system and cooling facilities. A preliminary cost analysis has been worked out. In the Western European UCPTE (Union for the Coordination of Production and Transport of Electricity) high power system, the plant could be used to provide spinning reserve for about 30 s while conventional thermal generating units ramp up to meet the increased load during peak power periods. Other applications in the electric utility field include power conditioning and stabilization in portions of a high-voltage power system.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	398
Ending Page	401
Page Count	4
File Size	537967
File Format	PDF
ISSN	10518223
Volume Number	7
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Flywheels Power conditioning Energy storage Composite materials Levitation Tensile stress Cooling Costs Production systems Power system analysis computing
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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