The problem of power factor in VRPM (transverse-flux) machines
Harris, M.R., Pajooman, G.H. and Abu-Sharkh, S.M. (1997) The problem of power factor in VRPM (transverse-flux) machines. In, Proceedings of Eighth International Conference on Electrical Machines and Drives, 1997. Eighth International Conference on Electrical Machines and Drives, 1997 USA, Institute of Electrical and Electronics Engineers, 386-390. (Conference Publication 444).
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Description/Abstract
The purpose of the paper is to explore the theory of power factor in variable reluctance permanent magnet (VRPM) machines and to understand what physical features of these machines tend to cause the low value. A single figure of merit, for a given design, is identified that effectively determines what the best available working power factor may be. The same figure of merit is applicable to synchronous machines of conventional configuration, so that comparison can be made between VRPM and conventional machines and the fundamental reasons for their difference in working power factor understood. The scope for power factor improvement in VRPM machines can then be examined, by changing the electromagnetic design so as to modify the figure of merit appropriately. However, it will become clear that a very limited amount of improvement is possible, and low working power factor seems to be the price that must be paid for the high specific output.
| Item Type: | Book Section |
|---|---|
| ISBNs: | 0852966962 (hardback) |
| Related URLs: | |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences |
| Item ID: | 21245 |
| Date Deposited: | 15 Nov 2006 |
| Last Modified: | 02 Mar 2012 12:04 |
| Contributors: | Harris, M.R. (Author) Pajooman, G.H. (Author) Abu-Sharkh, S.M. (Author) |
| Date: | 1997 |
| Status: | Published |
| Publisher: | Institute of Electrical and Electronics Engineers |
| URI: | http://eprints.soton.ac.uk/id/eprint/21245 |
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