AI SearchA study of harmonics related to the use of an adjustable speed drive for induction motors (Record no. 114668)
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| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818223039.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 230399s1998 th uzm rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11742598 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. ET-98-32 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Viroch Sukonthakarn |
| 245 12 - TITLE STATEMENT | |
| Title | A study of harmonics related to the use of an adjustable speed drive for induction motors |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1998 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 78 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. ET-98-32 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In the present, harmonic distortions from the use of adjustable speed drives have a significant impact on other system components and equipment operating within a facility and even at other facilities on the utility distribution system. The increasing use of static thyristor rectifiers has resulted in some unwanted side effects, one of that is the level of harmonic voltage distortion imposed on the supply network. The current drawn from the supply network by a thyristor rectifier is largely non-sinusoidal and contains various harmonic currents in addition to the fundamental 50/60 Hz component. The harmonic currents present and their respective amplitudes depend largely on the bridge configuration and, therefore, the number of de current pulses per supply cycle. Thus the use of thyristor drives system in an industry involving control of the voltage and speed of induction motor. The result of these harmonic currents flowing in the supply network is to generate harmonic voltages across the various supply impedance. This paper is presents with analytical and experimental investigations on harmonics in the voltage and current waveforms of an induction motor fed from Adjustable Speed Drive. A computer calculates is used to evaluate the harmonic spectrum of a given waveform, which is obtained from the mathematical model of a drive, which controls by PWM inverter in the stator phases of a delta-connected induction motor. In addition, tests and measurements of torque-speed, voltage, current, harmonics components, and all electrical power from direct an actual system in laboratory. And then analysis of resulting experiments by separate as two parts. The first is measurement data from input of ASp. Second is measurement data from out put of ASD or input of an induction motors. And results compared to an analysis solution. In final of this paper, analysis model of Induction Motor circuit by uses a computer calculates of each harmonic distortion with non-sinusoidal voltage supply. The finally, include the simply economics of ASD relate to induction motor. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Harmonics (Electric waves) |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Surapong Chiraratananon, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Malik, A. S., |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yu, Cun Yi, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Rajamangala Institute of Technology, |
| Relator term | Scolarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. ET-98-32 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B13333">http://203.159.5.9/ait-thesis/detail.php?q=B13333</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11742598 |
| b | mnait |
| c | y |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240411 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 990323 |
| First date, FD (RLIN) | m |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120708101 |
| CREATED | CREATED : 1997-10-24 |
| RECORD Id | RECORD # : i12124679 |
| LPATRON | LPATRON : 1012293 |
| LCHKIN | LCHKIN : 1998-02-07 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120708234 |
| CREATED | CREATED : 1997-10-24 |
| RECORD Id | RECORD # : i12124680 |
| LPATRON | LPATRON : 1009757 |
| LCHKIN | LCHKIN : 1997-11-27 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120365712 |
| CREATED | CREATED : 2016-06-15 |
| RECORD Id | RECORD # : i13036646 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. ET-98-32 | 30050120708101 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. ET-98-32 | 30050120708234 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. ET-98-32 | 30050120365712 | 18/08/2026 | 18/08/2026 | 40-Archives |