Indirect Field Orientation Control of Induction Machine With Detuning Effect

Induction motors (IM) arc characterized by complex, highly nonlinear time varying dynamics and inaccessibility of some states and outputs for measurements and hence may be considered as a challenging problem. Field orientation control (FOC ) methods of an induction machine achieve decoupled torque a...

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Main Author: Khalaf S. K. Al-Shemari
Format: Article
Language:English
Published: Tikrit University 2007-09-01
Series:Tikrit Journal of Engineering Sciences
Subjects:
Online Access:https://tj-es.com/ojs/index.php/tjes/article/view/688
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author Khalaf S. K. Al-Shemari
author_facet Khalaf S. K. Al-Shemari
author_sort Khalaf S. K. Al-Shemari
collection DOAJ
description Induction motors (IM) arc characterized by complex, highly nonlinear time varying dynamics and inaccessibility of some states and outputs for measurements and hence may be considered as a challenging problem. Field orientation control (FOC ) methods of an induction machine achieve decoupled torque and flux dynamics leading to independent control of torque and flux as for separately excited DC motor, but there are sensitive to motor parameter variations. The present work select the indirect field orientation control (IFOC) as an effective method for eliminating the coupling effect. The results showed how well the drive performance has been improved by this control strategy. However, to what extent the control strategy can perform the decoupling relies on the accuracy of the slip frequency calculation. Unfortunately, the slip frequency depends on the rotor time constant that varies continuously according to the operational conditions and then the coupling effect may again arise. This paper investigates the improvement in the performance of the induction machine dynamics as the IFOC technique is utilized. Also, it investigates the degradation in dynamic performance when the rotor resistance is deviated from its nominal value.
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spelling doaj.art-f4d611c35f6b45aebaf8e4de7e87def22023-07-12T12:56:20ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892007-09-0114310.25130/tjes.14.3.04Indirect Field Orientation Control of Induction Machine With Detuning EffectKhalaf S. K. Al-Shemari0Electrical Eng. Dept., Tikrit University, IraqInduction motors (IM) arc characterized by complex, highly nonlinear time varying dynamics and inaccessibility of some states and outputs for measurements and hence may be considered as a challenging problem. Field orientation control (FOC ) methods of an induction machine achieve decoupled torque and flux dynamics leading to independent control of torque and flux as for separately excited DC motor, but there are sensitive to motor parameter variations. The present work select the indirect field orientation control (IFOC) as an effective method for eliminating the coupling effect. The results showed how well the drive performance has been improved by this control strategy. However, to what extent the control strategy can perform the decoupling relies on the accuracy of the slip frequency calculation. Unfortunately, the slip frequency depends on the rotor time constant that varies continuously according to the operational conditions and then the coupling effect may again arise. This paper investigates the improvement in the performance of the induction machine dynamics as the IFOC technique is utilized. Also, it investigates the degradation in dynamic performance when the rotor resistance is deviated from its nominal value. https://tj-es.com/ojs/index.php/tjes/article/view/688Field orientation control (FOC )Induction motors (IM)indirect field orientation control (IFOC)
spellingShingle Khalaf S. K. Al-Shemari
Indirect Field Orientation Control of Induction Machine With Detuning Effect
Tikrit Journal of Engineering Sciences
Field orientation control (FOC )
Induction motors (IM)
indirect field orientation control (IFOC)
title Indirect Field Orientation Control of Induction Machine With Detuning Effect
title_full Indirect Field Orientation Control of Induction Machine With Detuning Effect
title_fullStr Indirect Field Orientation Control of Induction Machine With Detuning Effect
title_full_unstemmed Indirect Field Orientation Control of Induction Machine With Detuning Effect
title_short Indirect Field Orientation Control of Induction Machine With Detuning Effect
title_sort indirect field orientation control of induction machine with detuning effect
topic Field orientation control (FOC )
Induction motors (IM)
indirect field orientation control (IFOC)
url https://tj-es.com/ojs/index.php/tjes/article/view/688
work_keys_str_mv AT khalafskalshemari indirectfieldorientationcontrolofinductionmachinewithdetuningeffect