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Details of Grant 

EPSRC Reference: GR/L76396/01
Title: ELECTROMAGNETIC STATOR AND ROTOR LOSSES IN HIGH-SPEED PM MACHINES AND ALLIED EFFECTS IN CLASSICAL MACHINES
Principal Investigator: Harris, Professor M
Other Investigators:
Stoll, Dr R Sharkh, Professor S
Researcher Co-Investigators:
Project Partners:
Bowman Power Group Ltd European Electrical Steels Ltd GEC
Department: Electronics and Computer Science
Organisation: University of Southampton
Scheme: Standard Research (Pre-FEC)
Starts: 15 June 1998 Ends: 14 March 2002 Value (£): 170,618
EPSRC Research Topic Classifications:
Electric Motor & Drive Systems
EPSRC Industrial Sector Classifications:
Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
Central to the project is an experimental programme to measure stator and rotor electromagnetic losses in very high-speed (up to 100,000 r/min) permanent-magnetic machines. Rotor losses in the conducting magnets, and possibly also the retaining sleeve, due to eddy currents induced by harmonic fields, are a major concern. So also is the identification of operating conditions and constructional methods that may lead to excessive loss in the stator laminated core. Losses in generators feeding rectifier loads and inverter-fed motors are of special interest. There are potentially large international growth markets for both high-speed generators and motors. Test results will be compared with analytical and computational predictions, using methods recently developed by the Investigators, and the aim is to gain a full understanding of the parameters influencing all the components of loss. A precision test rig will be developed, in which a full variety of stator/rotor assemblies can be rapidly investigated. The studies of rotor loss mechanisms are readily applicable to conventional synchronous machines, and the fully developed and validated computational methods will also be applied to large salient-pole generators and inverter-fed motors. A PhD student will further extend this work, to more detailed loss estimates and possibly asynchronous torque prediction.
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Organisation Website: http://www.soton.ac.uk