Performance evaluation of decoupled control of rotor torque and rotor electric power in a salient pole synchronous machine

M. I. Masoud, J. E. Fletcher, B. W. Williams

Research output: Contribution to journalArticle

Abstract

This paper presents the performance of a closed loop current control drive system which provides independent control of rotor torque and rotor current in a salient-pole synchronous machine. The machine is modeled using a d-q equivalent circuit in the rotor reference frame. The analysis shows that if the rotor current and its derivative are continuous functions, it is possible to derive equations for both the d and q axis stator currents that control the electric power transferred to a resistive load mounted on the rotor and independently control the rotor torque. The drive system is affected by factors included in the derived d-q axis stator currents. The effect of these factors, namely, d-q axis inductance, command rotor current, and flux perturbation frequency is investigated using both simulation and experimentation. Further, the effect of increasing interpolar cut-out on both rotor torque and rotor electric power is investigated. The technique eliminates the need for slip rings. The machine would find such uses as in rotational antenna and turret systems, or other situations where power is required for an electric load mounted on a rotating assembly. © 2004 The Institution of Electrical Engineers.

Original languageEnglish
Pages (from-to)691-696
Number of pages6
JournalIEE Conference Publication
Volume2
Publication statusPublished - 2004
EventSecond International Conference on Power Electronics, Machines and Drives, PEMD 2004 - Edinburgh, United Kingdom
Duration: 31 Mar 20042 Apr 2004

Fingerprint

Poles
Torque
Rotors
Electric current control
Stators
Electric loads
Equivalent circuits
Inductance
Antennas
Fluxes
Derivatives
Engineers

Keywords

  • Contactless power transmission
  • Rotational transformer
  • Synchronous machine

Cite this

@article{d006c452098b41b9b9023c6704be304d,
title = "Performance evaluation of decoupled control of rotor torque and rotor electric power in a salient pole synchronous machine",
abstract = "This paper presents the performance of a closed loop current control drive system which provides independent control of rotor torque and rotor current in a salient-pole synchronous machine. The machine is modeled using a d-q equivalent circuit in the rotor reference frame. The analysis shows that if the rotor current and its derivative are continuous functions, it is possible to derive equations for both the d and q axis stator currents that control the electric power transferred to a resistive load mounted on the rotor and independently control the rotor torque. The drive system is affected by factors included in the derived d-q axis stator currents. The effect of these factors, namely, d-q axis inductance, command rotor current, and flux perturbation frequency is investigated using both simulation and experimentation. Further, the effect of increasing interpolar cut-out on both rotor torque and rotor electric power is investigated. The technique eliminates the need for slip rings. The machine would find such uses as in rotational antenna and turret systems, or other situations where power is required for an electric load mounted on a rotating assembly. {\circledC} 2004 The Institution of Electrical Engineers.",
keywords = "Contactless power transmission, Rotational transformer, Synchronous machine",
author = "Masoud, {M. I.} and Fletcher, {J. E.} and Williams, {B. W.}",
year = "2004",
language = "English",
volume = "2",
pages = "691--696",
journal = "IEE Conference Publication",
issn = "0537-9989",
publisher = "Institution of Engineering and Technology",

}

Performance evaluation of decoupled control of rotor torque and rotor electric power in a salient pole synchronous machine. / Masoud, M. I.; Fletcher, J. E.; Williams, B. W.

In: IEE Conference Publication, Vol. 2, 2004, p. 691-696.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Performance evaluation of decoupled control of rotor torque and rotor electric power in a salient pole synchronous machine

AU - Masoud, M. I.

AU - Fletcher, J. E.

AU - Williams, B. W.

PY - 2004

Y1 - 2004

N2 - This paper presents the performance of a closed loop current control drive system which provides independent control of rotor torque and rotor current in a salient-pole synchronous machine. The machine is modeled using a d-q equivalent circuit in the rotor reference frame. The analysis shows that if the rotor current and its derivative are continuous functions, it is possible to derive equations for both the d and q axis stator currents that control the electric power transferred to a resistive load mounted on the rotor and independently control the rotor torque. The drive system is affected by factors included in the derived d-q axis stator currents. The effect of these factors, namely, d-q axis inductance, command rotor current, and flux perturbation frequency is investigated using both simulation and experimentation. Further, the effect of increasing interpolar cut-out on both rotor torque and rotor electric power is investigated. The technique eliminates the need for slip rings. The machine would find such uses as in rotational antenna and turret systems, or other situations where power is required for an electric load mounted on a rotating assembly. © 2004 The Institution of Electrical Engineers.

AB - This paper presents the performance of a closed loop current control drive system which provides independent control of rotor torque and rotor current in a salient-pole synchronous machine. The machine is modeled using a d-q equivalent circuit in the rotor reference frame. The analysis shows that if the rotor current and its derivative are continuous functions, it is possible to derive equations for both the d and q axis stator currents that control the electric power transferred to a resistive load mounted on the rotor and independently control the rotor torque. The drive system is affected by factors included in the derived d-q axis stator currents. The effect of these factors, namely, d-q axis inductance, command rotor current, and flux perturbation frequency is investigated using both simulation and experimentation. Further, the effect of increasing interpolar cut-out on both rotor torque and rotor electric power is investigated. The technique eliminates the need for slip rings. The machine would find such uses as in rotational antenna and turret systems, or other situations where power is required for an electric load mounted on a rotating assembly. © 2004 The Institution of Electrical Engineers.

KW - Contactless power transmission

KW - Rotational transformer

KW - Synchronous machine

UR - http://www.scopus.com/inward/record.url?scp=17044385718&partnerID=8YFLogxK

M3 - Article

VL - 2

SP - 691

EP - 696

JO - IEE Conference Publication

JF - IEE Conference Publication

SN - 0537-9989

ER -