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A non-intrusive in-service motor efficiency estimation technique
Dissertation (MEng (Electrical))--University of Pretoria, 2011.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2013
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| _version_ | 1867613511135264768 |
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| access_status_str | Open Access |
| author2 | Naidoo, Robin |
| author_browse | Naidoo, Robin |
| author_facet | Naidoo, Robin |
| collection | Thesis |
| dc_rights_str_mv | © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng (Electrical))--University of Pretoria, 2011. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/31309 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:37:18.340Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/31309 A non-intrusive in-service motor efficiency estimation technique Naidoo, Robin muzid@tuks.co.za Dlamini, Vusumuzi UCTD Energy management Energy Decision support systems Motor efficiency estimation Online estimation Speed estimation Vibration signature analysis Motor management Induction motors Energy efficiency Dissertation (MEng (Electrical))--University of Pretoria, 2011. Optimising the energy use of electric motors presents a significant opportunity for reducing energy consumption in industry. A need exists for methods of accurately estimating the efficiency of motors without interrupting the motor driven process. This study describes the development of an accurate non-intrusive efficiency estimation technique for in-service induction motors. This method is based on a non-intrusive compensated slip method. A new motor speed estimation technique based on vibration signature analysis is developed and applied in the proposed efficiency estimation technique. The performance of this method is verified through experimental data. Six other efficiency estimation techniques are implemented in this work. Their practical performance is compared to the proposed non-intrusive compensated slip technique. The proposed method of estimating motor efficiency is found to be accurate and easy to implement. The robustness of the non-intrusive compensated slip method to variations in the supply voltage is evaluated. The technique is robust to under-voltage and over-voltage power system conditions. A comprehensive motor management strategy to reduce motor life cycle costs while increasing reliability is presented. This is an integrated approach based on the application of the speed and efficiency estimation techniques described in this study. Electrical, Electronic and Computer Engineering MEng (Electrical) restricted 2013-09-09T12:10:45Z 2012-10-01 2013-09-09T12:10:45Z 2012-09-13 2011-10-01 2012-09-27 Dissertation Dlamini, V 2011, A non-intrusive in-service motor efficiency estimation technique, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://upetd.up.ac.za/thesis/available/etd-09272012-184659/ > C12/4/53/gm http://hdl.handle.net/2263/31309 http://upetd.up.ac.za/thesis/available/etd-09272012-184659/ en © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Energy management Energy Decision support systems Motor efficiency estimation Online estimation Speed estimation Vibration signature analysis Motor management Induction motors Energy efficiency A non-intrusive in-service motor efficiency estimation technique |
| title | A non-intrusive in-service motor efficiency estimation technique |
| title_full | A non-intrusive in-service motor efficiency estimation technique |
| title_fullStr | A non-intrusive in-service motor efficiency estimation technique |
| title_full_unstemmed | A non-intrusive in-service motor efficiency estimation technique |
| title_short | A non-intrusive in-service motor efficiency estimation technique |
| title_sort | non intrusive in service motor efficiency estimation technique |
| topic | UCTD Energy management Energy Decision support systems Motor efficiency estimation Online estimation Speed estimation Vibration signature analysis Motor management Induction motors Energy efficiency |
| url | http://hdl.handle.net/2263/31309 http://upetd.up.ac.za/thesis/available/etd-09272012-184659/ |