Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault States

The coordinate transformation method of asymmetric dual three phase synchronous motor (ADTP-SM) is a Double dq transform using two <i>dq</i>-axes and a vector space decomposition (VSD) model method using the orthogonality of ADTP-SM. There are several studies comparing the two methods in...

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Main Authors: Dong-Kyun Son, Soon-Ho Kwon, Dong-Ok Kim, Hee-Sue Song, Geun-Ho Lee
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/6/1735
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author Dong-Kyun Son
Soon-Ho Kwon
Dong-Ok Kim
Hee-Sue Song
Geun-Ho Lee
author_facet Dong-Kyun Son
Soon-Ho Kwon
Dong-Ok Kim
Hee-Sue Song
Geun-Ho Lee
author_sort Dong-Kyun Son
collection DOAJ
description The coordinate transformation method of asymmetric dual three phase synchronous motor (ADTP-SM) is a Double dq transform using two <i>dq</i>-axes and a vector space decomposition (VSD) model method using the orthogonality of ADTP-SM. There are several studies comparing the two methods in a healthy state, but few in a single-phase open fault state. In the healthy, when the VSD model is applied, different harmonic orders of the phase current are projected onto the <i>dq</i> and <i>xy</i>-axes (the axis for controlling harmonics of the phase current), and the two-axes are orthogonal, so it can be controlled stably. In the single-phase open fault state, the same current control logic as in the healthy situation is applied. When applying the Double dq transform, the <i>dq</i>-axis of the fault set fluctuates, and it affects the healthy set, so it cannot be controlled stably. When applying the VSD model, if both the <i>dq</i>-axis and the <i>xy</i>-axis are controlled, the two coordinate systems do not have orthogonality and cannot be stably controlled, due to mutual interference. However, if only the <i>dq</i>-axis is controlled, it can be controlled stably because there is no Cartesian coordinate system other than the <i>dq</i>-axis. In the healthy state and single-phase open fault state, the equation is verified through experiments and simulations, and the control stability according to the coordinate transformation is compared.
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spelling doaj.art-249734fabcc744ecac7f00dab3daa4f92023-11-21T11:22:08ZengMDPI AGEnergies1996-10732021-03-01146173510.3390/en14061735Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault StatesDong-Kyun Son0Soon-Ho Kwon1Dong-Ok Kim2Hee-Sue Song3Geun-Ho Lee4Electric Motor Control Laboratory, Graduate School of Automotive Engineering, Kookmin University, Seoul 02707, KoreaElectric Motor Control Laboratory, Graduate School of Automotive Engineering, Kookmin University, Seoul 02707, KoreaElectric Motor Control Laboratory, Graduate School of Automotive Engineering, Kookmin University, Seoul 02707, KoreaElectric Motor Control Laboratory, Graduate School of Automotive Engineering, Kookmin University, Seoul 02707, KoreaElectric Motor Control Laboratory, Graduate School of Automotive Engineering, Kookmin University, Seoul 02707, KoreaThe coordinate transformation method of asymmetric dual three phase synchronous motor (ADTP-SM) is a Double dq transform using two <i>dq</i>-axes and a vector space decomposition (VSD) model method using the orthogonality of ADTP-SM. There are several studies comparing the two methods in a healthy state, but few in a single-phase open fault state. In the healthy, when the VSD model is applied, different harmonic orders of the phase current are projected onto the <i>dq</i> and <i>xy</i>-axes (the axis for controlling harmonics of the phase current), and the two-axes are orthogonal, so it can be controlled stably. In the single-phase open fault state, the same current control logic as in the healthy situation is applied. When applying the Double dq transform, the <i>dq</i>-axis of the fault set fluctuates, and it affects the healthy set, so it cannot be controlled stably. When applying the VSD model, if both the <i>dq</i>-axis and the <i>xy</i>-axis are controlled, the two coordinate systems do not have orthogonality and cannot be stably controlled, due to mutual interference. However, if only the <i>dq</i>-axis is controlled, it can be controlled stably because there is no Cartesian coordinate system other than the <i>dq</i>-axis. In the healthy state and single-phase open fault state, the equation is verified through experiments and simulations, and the control stability according to the coordinate transformation is compared.https://www.mdpi.com/1996-1073/14/6/1735asymmetric dual three phase synchronous motorvector space decompositiondouble dq transformmagneto motive force
spellingShingle Dong-Kyun Son
Soon-Ho Kwon
Dong-Ok Kim
Hee-Sue Song
Geun-Ho Lee
Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault States
Energies
asymmetric dual three phase synchronous motor
vector space decomposition
double dq transform
magneto motive force
title Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault States
title_full Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault States
title_fullStr Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault States
title_full_unstemmed Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault States
title_short Control Comparison for the Coordinate Transformation of an Asymmetric Dual Three Phase Synchronous Motor in Healthy and Single-Phase Open Fault States
title_sort control comparison for the coordinate transformation of an asymmetric dual three phase synchronous motor in healthy and single phase open fault states
topic asymmetric dual three phase synchronous motor
vector space decomposition
double dq transform
magneto motive force
url https://www.mdpi.com/1996-1073/14/6/1735
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