High voltage stator for a flywheel energy storage system

Author

Aanstoos, T.A. ; Kajs, J.P. ; Brinkman, W.G. ; Liu, H.-P. ; Ouroua, A. ; Hayes, R.J. ; Hearn, C. ; Sarjeant, J. ; Gill, H.

Author_Institution

Center for Electromech., Texas Univ., Austin, TX, USA

Volume

37

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

242

Lastpage

247

Abstract

The University of Texas at Austin Center for Electromechanics (UT-CEM) has designed and conducted component test/development for a flywheel energy storage system for pulsed loads and mobility load leveling in a tactical vehicle. Performance goals of this machine dictate that the stator windings will see continuous voltages of 6.7 kV and spikes to 10 kV. To manage the thermal loads produced by the intermittent 5 MW output pulses, and continuous 350 kW duty, the generator is cooled by oil at a maximum temperature of 90°C. UT-CEM designed and developed a novel insulation system and dual coolant passage arrays for the stator. Design performance was verified in laboratory prototype testing. This paper summarizes design goals, analysis, and mockup testing of the motor-generator stator

Keywords

cooling; finite element analysis; flywheels; insulation; military equipment; pulsed power supplies; stators; 10 kV; 350 kW; 5 MW; 6.7 kV; 90 C; Center for Electromechanics; University of Texas at Austin; combat hybrid power system; continuous voltages; design goals; dual coolant passage arrays; finite element analysis; flywheel energy storage system; high voltage stator; insulation system; mobility load leveling; mockup testing; motor-generator stator; oil cooling; pulsed loads; stator windings; tactical vehicle; thermal loads; Energy storage; Flywheels; Petroleum; Pulse generation; Stator windings; System testing; Thermal loading; Thermal management; Vehicles; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.911830

Filename

911830