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in creator/contributor: "Wiles, R. H."  
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Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation

Description: In a conventional permanent magnet (PM) machine, the air-gap flux produced by the PM is fixed. It is difficult to enhance the air-gap flux density due to limitations of the PM in a series-magnetic circuit. However, the air-gap flux density can be weakened by using power electronic field weakening to the limit of demagnetization of the PMs. This paper presents the test results of controlling the PM air-gap flux density through the use of a stationary brushless excitation coil in a reluctance int… more
Date: October 7, 2005
Creator: Wiles, R.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waste treatment at the Radiochemical Engineering Development Center

Description: At the Radiochemical Engineering Development Center (REDC) irradiated targets are processed for the recovery of valuable radioisotopes, principally transuranium nuclides. A system was recently installed for treating the various liquid alkaline waste streams for removal of excess radioactive contaminants at the REDC. Radionuclides that are removed will be stored as solids and thus the future discharge of radionuclides to liquid low level waste tank storage will be greatly reduced. The treatment … more
Date: December 31, 1997
Creator: Brunson, R. R.; Bond, W. D.; Chattin, F. R.; Collins, R. T.; Sullivan, G. R. & Wiles, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

16,000-rpm Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation

Description: The reluctance interior permanent magnet (RIPM) motor is currently used by many leading auto manufacturers for hybrid vehicles. The power density for this type of motor is high compared with that of induction motors and switched reluctance motors. The primary drawback of the RIPM motor is the permanent magnet (PM) because during high-speed operation, the fixed PM produces a huge back electromotive force (emf) that must be reduced before the current will pass through the stator windings. This re… more
Date: October 31, 2007
Creator: Hsu, J. S.; Burress, T. A.; Lee, S. T.; Wiles, R. H.; Coomer, C. L.; McKeever, J.W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on Toyota/Prius Motor Torque Capability, Torque Property, No-Load Back EMF, and Mechanical Losses, Revised May 2007

Description: In today's hybrid vehicle market, the Toyota/Prius drive system is currently considered the leader in electrical, mechanical, and manufacturing innovations. It is significant that in today's marketplace, Toyota is able to manufacture and sell the vehicle for a profit. This project's objective is to test the torque capability of the 2004 Prius motor and to analyze the torque properties relating to the rotor structure. The tested values of no-load back electromotive force (emf) and mechanical los… more
Date: May 31, 2007
Creator: Hsu, J.S.; Ayers, C.W.; Coomer, C.L.; Wiles, R.H.; Burress, T.A.; Campbell, S.L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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