Browsing by Author "Hunter Gregory"

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Browsing by Author "Hunter Gregory"

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  • High Torque Brushless DC Motor for a Valve Actuator 
    Watterson Peter; Collocott Stephen; Dunlop John; Gwan Paul; Hunter Gregory; Kalan Bruce; Lovatt Howard (International Academic Publisher, Beijing World Publishing Corporation, 2005)
    The design of a high torque brush less DC moto rto replace the induction motor and worm gear for valve actuators is described. Minimum motor cost, short axial length and low electronics rating are achieved by selection ...
  • Marine Electric Hybrid Power Systems 
    Dane Robert; Watterson Peter; Holliday William; Evans Charles; Ramsden Victor; Ramaswamy Venkataraman; Hunter Gregory (Institute of Engineers Australia, 2002)
    For the past 120 years internal combustion engines have powered ships. Prior to that, sailors used paddles and sail for propulsion. In the last 80 years, diesels have dominated because of their safety and reliability, ...
  • A Sensorless PMSM Fundamental Mode Controller with High Dynamic Full Range Speed Control 
    Hunter Gregory (IEEE, 2011)
    Previous methods of sensorless vector control of the PMSM operate by indirectly determining the rotor position usually from the back EMF or from saliency detection using HF injection. This paper introduces an entirely new ...