Student Number : 9306442N -
PhD thesis -
School of Electrical and Information Engineering -
Faculty of Engineering and the Built Environment / This thesis describes the design, construction and evaluation of a prototype modified
tubular linear synchronous motor. The linear motor has a long static primary and
a short permanent magnet mobile secondary. The design is unique in that a tubular
topology has been modified to allow access to the moving secondary section. This
modification means that this design can be used in long distance applications. The
application for this research is the use of linear motors in rope-less vertical trans-
portation systems in ultra deep level mines. The design of the linear motor has been
analysed from an electrical, magnetic, mechanical and thermal perspective. Finite
Element Analysis was used to predict the performance of the linear motor. The
design of the secondary section has been optimised to produce the greatest possible
thrust force while reducing the effects of the cogging forces. The linear motor has
been tested extensively and the results correlate with theoretical predictions from
the Finite Element Analysis. This project proves that the modified tubular lin-
ear synchronous motor is a viable technology that can be used in rope-less vertical
transportation systems.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/1657 |
| Date | 14 November 2006 |
| Creators | Van Zyl, Andre Willem |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 6601433 bytes, application/pdf, application/pdf |
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