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To develop an efficient variable speed compressor motor system

This research presents a proposed new method of improving the energy efficiency of a Variable Speed Drive (VSD) for induction motors. The principles of VSD are reviewed with emphasis on the efficiency and power losses associated with the operation of the variable speed compressor motor drive, partic...

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Main Authors: Mohd. Yatim, Abdul Halim, Mulyo Utomo, Wahyu
Format: Other
Language:English
Published: Faculty of Electrical Engineering 2007
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/2756/1/74535.pdf
http://eprints.utm.my/id/eprint/2756/
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spelling my.utm.27562020-02-26T08:47:45Z http://eprints.utm.my/id/eprint/2756/ To develop an efficient variable speed compressor motor system Mohd. Yatim, Abdul Halim Mulyo Utomo, Wahyu TK Electrical engineering. Electronics Nuclear engineering This research presents a proposed new method of improving the energy efficiency of a Variable Speed Drive (VSD) for induction motors. The principles of VSD are reviewed with emphasis on the efficiency and power losses associated with the operation of the variable speed compressor motor drive, particularly at low speed operation.The efficiency of induction motor when operated at rated speed and load torque is high. However at low load operation, application of the induction motor at rated flux will cause the iron losses to increase excessively, hence its efficiency will reduce dramatically. To improve this efficiency, it is essential to obtain the flux level that minimizes the total motor losses. This technique is known as an efficiency or energy optimization control method. In practice, typical of the compressor load does not require high dynamic response, therefore improvement of the efficiency optimization control that is proposed in this research is based on scalar control model.In this research, development of a new neural network controller for efficiency optimization control is proposed. The controller is designed to generate both voltage and frequency reference signals imultaneously. To achieve a robust controller from variation of motor parameters, a real-time or on-line learning algorithm based on a second order optimization Levenberg-Marquardt is employed. The simulation of the proposed controller for variable speed compressor is presented. The results obtained clearly show that the efficiency at low speed is significant increased. Besides that the speed of the motor can be maintained. Furthermore, the controller is also robust to the motor parameters variation. The simulation results are also verified by experiment. Faculty of Electrical Engineering 2007-03-01 Other NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/2756/1/74535.pdf Mohd. Yatim, Abdul Halim and Mulyo Utomo, Wahyu (2007) To develop an efficient variable speed compressor motor system. Faculty of Electrical Engineering, Skudai, Johor. (Unpublished)
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Mohd. Yatim, Abdul Halim
Mulyo Utomo, Wahyu
To develop an efficient variable speed compressor motor system
description This research presents a proposed new method of improving the energy efficiency of a Variable Speed Drive (VSD) for induction motors. The principles of VSD are reviewed with emphasis on the efficiency and power losses associated with the operation of the variable speed compressor motor drive, particularly at low speed operation.The efficiency of induction motor when operated at rated speed and load torque is high. However at low load operation, application of the induction motor at rated flux will cause the iron losses to increase excessively, hence its efficiency will reduce dramatically. To improve this efficiency, it is essential to obtain the flux level that minimizes the total motor losses. This technique is known as an efficiency or energy optimization control method. In practice, typical of the compressor load does not require high dynamic response, therefore improvement of the efficiency optimization control that is proposed in this research is based on scalar control model.In this research, development of a new neural network controller for efficiency optimization control is proposed. The controller is designed to generate both voltage and frequency reference signals imultaneously. To achieve a robust controller from variation of motor parameters, a real-time or on-line learning algorithm based on a second order optimization Levenberg-Marquardt is employed. The simulation of the proposed controller for variable speed compressor is presented. The results obtained clearly show that the efficiency at low speed is significant increased. Besides that the speed of the motor can be maintained. Furthermore, the controller is also robust to the motor parameters variation. The simulation results are also verified by experiment.
format Other
author Mohd. Yatim, Abdul Halim
Mulyo Utomo, Wahyu
author_facet Mohd. Yatim, Abdul Halim
Mulyo Utomo, Wahyu
author_sort Mohd. Yatim, Abdul Halim
title To develop an efficient variable speed compressor motor system
title_short To develop an efficient variable speed compressor motor system
title_full To develop an efficient variable speed compressor motor system
title_fullStr To develop an efficient variable speed compressor motor system
title_full_unstemmed To develop an efficient variable speed compressor motor system
title_sort to develop an efficient variable speed compressor motor system
publisher Faculty of Electrical Engineering
publishDate 2007
url http://eprints.utm.my/id/eprint/2756/1/74535.pdf
http://eprints.utm.my/id/eprint/2756/
_version_ 1662754212067409920
score 13.211869

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