Decoupled control of rotor torque and rotor electric power delivered in a salient-pole, synchronous machine

Mahmoud I. Masoud, John E. Fletcher, Barry W. Williams

Research output: Contribution to journalArticle

10 Citations (Scopus)


A drive system with a control algorithm that provides independent control of rotor torque and rotor electric power is described in this paper. One electromechanical machine is used for two purposes, viz., firstly to provide electromagnetic torque to rotate a rotor mounted load and secondly to provide electric power to equipment mounted on the rotor. The technique eliminates the need for slip rings. Simulation and practical results verifying the analysis are given. The system has applications such as rotational antennas and turret systems.

Original languageEnglish
Pages (from-to)45-52
Number of pages8
JournalIEEE Transactions on Energy Conversion
Issue number1
Publication statusPublished - Mar 2005



  • Synchronous motor
  • Synchronous motor drive
  • Torque control and transformer

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Electrical and Electronic Engineering

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