Improved close loop stator flux estimation of direct torque control drive

Hassan Farhan Rashag, S. P. Koh, Ahmed N. Abdalla, Nadia M.L. Tan, K. H. Chong, S. K. Tiong, Aqeel S. Jaber

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

In conventional direct torque controlled (DTC) induction motor drive, there is usually undesired torque and flux ripple. In this paper close loop stator flux estimation of DTC with space vector modulation under heavy load at low speed was proposed. First, brief description of stator currents in direct-quadrature reference frame with voltage model. Second, close loop stator flux feedback used through PID controller to correct the value of stator flux estimation and eliminate error. In addition, low pass filter also used instead of pure integration to avoid saturation problem. Finally, simulation results show that the flux and torque ripples are greatly reduced when compared with open loop of stator flux estimation.

Original languageEnglish
Pages (from-to)572-577
Number of pages6
JournalProcedia Engineering
Volume38
DOIs
Publication statusPublished - 01 Jan 2012
EventInternational Conference on Modelling Optimization and Computing - TamilNadu, India
Duration: 10 Apr 201211 Apr 2012

Fingerprint

Torque control
Stators
Fluxes
Torque
Low pass filters
Vector spaces
Induction motors
Loads (forces)
Modulation
Feedback
Controllers
Electric potential

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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title = "Improved close loop stator flux estimation of direct torque control drive",
abstract = "In conventional direct torque controlled (DTC) induction motor drive, there is usually undesired torque and flux ripple. In this paper close loop stator flux estimation of DTC with space vector modulation under heavy load at low speed was proposed. First, brief description of stator currents in direct-quadrature reference frame with voltage model. Second, close loop stator flux feedback used through PID controller to correct the value of stator flux estimation and eliminate error. In addition, low pass filter also used instead of pure integration to avoid saturation problem. Finally, simulation results show that the flux and torque ripples are greatly reduced when compared with open loop of stator flux estimation.",
author = "Rashag, {Hassan Farhan} and Koh, {S. P.} and Abdalla, {Ahmed N.} and Tan, {Nadia M.L.} and Chong, {K. H.} and Tiong, {S. K.} and Jaber, {Aqeel S.}",
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journal = "Procedia Engineering",
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Improved close loop stator flux estimation of direct torque control drive. / Rashag, Hassan Farhan; Koh, S. P.; Abdalla, Ahmed N.; Tan, Nadia M.L.; Chong, K. H.; Tiong, S. K.; Jaber, Aqeel S.

In: Procedia Engineering, Vol. 38, 01.01.2012, p. 572-577.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Improved close loop stator flux estimation of direct torque control drive

AU - Rashag, Hassan Farhan

AU - Koh, S. P.

AU - Abdalla, Ahmed N.

AU - Tan, Nadia M.L.

AU - Chong, K. H.

AU - Tiong, S. K.

AU - Jaber, Aqeel S.

PY - 2012/1/1

Y1 - 2012/1/1

N2 - In conventional direct torque controlled (DTC) induction motor drive, there is usually undesired torque and flux ripple. In this paper close loop stator flux estimation of DTC with space vector modulation under heavy load at low speed was proposed. First, brief description of stator currents in direct-quadrature reference frame with voltage model. Second, close loop stator flux feedback used through PID controller to correct the value of stator flux estimation and eliminate error. In addition, low pass filter also used instead of pure integration to avoid saturation problem. Finally, simulation results show that the flux and torque ripples are greatly reduced when compared with open loop of stator flux estimation.

AB - In conventional direct torque controlled (DTC) induction motor drive, there is usually undesired torque and flux ripple. In this paper close loop stator flux estimation of DTC with space vector modulation under heavy load at low speed was proposed. First, brief description of stator currents in direct-quadrature reference frame with voltage model. Second, close loop stator flux feedback used through PID controller to correct the value of stator flux estimation and eliminate error. In addition, low pass filter also used instead of pure integration to avoid saturation problem. Finally, simulation results show that the flux and torque ripples are greatly reduced when compared with open loop of stator flux estimation.

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