Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings

This paper presents a topology for the brushless operation of a wound-rotor synchronous machine based on the subharmonic excitation technique by using two sets of multi-pole windings on the armature as well as on the rotor. The armature windings consist of a four-pole three-phase main winding and a...

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Main Authors: Muhammad Humza, Tanveer Yazdan, Qasim Ali, Han-Wook Cho
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/11/5/1117
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author Muhammad Humza
Tanveer Yazdan
Qasim Ali
Han-Wook Cho
author_facet Muhammad Humza
Tanveer Yazdan
Qasim Ali
Han-Wook Cho
author_sort Muhammad Humza
collection DOAJ
description This paper presents a topology for the brushless operation of a wound-rotor synchronous machine based on the subharmonic excitation technique by using two sets of multi-pole windings on the armature as well as on the rotor. The armature windings consist of a four-pole three-phase main winding and a two-pole single-phase additional winding, responsible for the generation of fundamental and subharmonic components of magnetomotive force (MMF), respectively. The rotor contains four-pole field winding and two-pole excitation winding. From the generated air gap MMF, the additional winding is responsible for induction in excitation winding, which feeds DC to the field winding through a rotating rectifier without the need of brushes. Then, the interaction of the magnetic field from the main and the field windings produces torque. The proposed topology is analyzed using 2D finite element analysis (FEM). From the analysis, the generation of the subharmonic component of MMF is verified, which helps in achieving the brushless operation of the wound-rotor synchronous machine. Furthermore, the performance of the proposed brushless multi-pole topology is compared with the existing dual three-phase winding multi-pole topology in terms of current due to induction, output torque, torque ripples, and efficiency.
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spelling doaj.art-0567751c8f0e4b8296006ee82da3b79a2023-11-17T08:08:27ZengMDPI AGMathematics2227-73902023-02-01115111710.3390/math11051117Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator WindingsMuhammad Humza0Tanveer Yazdan1Qasim Ali2Han-Wook Cho3Department of Electric, Electronics, and Communication Engineering Education, Chungnam National University, Daejeon 34134, Republic of KoreaDepartment of Electrical Engineering, The University of Lahore, Lahore 54000, PakistanDepartment of Electrical Engineering, Sukkur IBA University, Sukkur 65200, PakistanDepartment of Electric, Electronics, and Communication Engineering Education, Chungnam National University, Daejeon 34134, Republic of KoreaThis paper presents a topology for the brushless operation of a wound-rotor synchronous machine based on the subharmonic excitation technique by using two sets of multi-pole windings on the armature as well as on the rotor. The armature windings consist of a four-pole three-phase main winding and a two-pole single-phase additional winding, responsible for the generation of fundamental and subharmonic components of magnetomotive force (MMF), respectively. The rotor contains four-pole field winding and two-pole excitation winding. From the generated air gap MMF, the additional winding is responsible for induction in excitation winding, which feeds DC to the field winding through a rotating rectifier without the need of brushes. Then, the interaction of the magnetic field from the main and the field windings produces torque. The proposed topology is analyzed using 2D finite element analysis (FEM). From the analysis, the generation of the subharmonic component of MMF is verified, which helps in achieving the brushless operation of the wound-rotor synchronous machine. Furthermore, the performance of the proposed brushless multi-pole topology is compared with the existing dual three-phase winding multi-pole topology in terms of current due to induction, output torque, torque ripples, and efficiency.https://www.mdpi.com/2227-7390/11/5/1117brushless operationmulti-pole windingsub harmonicwound-rotor synchronous machine
spellingShingle Muhammad Humza
Tanveer Yazdan
Qasim Ali
Han-Wook Cho
Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings
Mathematics
brushless operation
multi-pole winding
sub harmonic
wound-rotor synchronous machine
title Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings
title_full Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings
title_fullStr Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings
title_full_unstemmed Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings
title_short Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings
title_sort brushless operation of wound rotor synchronous machine based on sub harmonic excitation technique using multi pole stator windings
topic brushless operation
multi-pole winding
sub harmonic
wound-rotor synchronous machine
url https://www.mdpi.com/2227-7390/11/5/1117
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AT tanveeryazdan brushlessoperationofwoundrotorsynchronousmachinebasedonsubharmonicexcitationtechniqueusingmultipolestatorwindings
AT qasimali brushlessoperationofwoundrotorsynchronousmachinebasedonsubharmonicexcitationtechniqueusingmultipolestatorwindings
AT hanwookcho brushlessoperationofwoundrotorsynchronousmachinebasedonsubharmonicexcitationtechniqueusingmultipolestatorwindings