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14. Open-Phase Fault Operation on Multiphase Induction Motor Drives

Author

Guzman, Hugo

Subjects
Science / Physics / Electromagnetism
Abstract

Multiphase machines have been recognized in the last few years like an attractive alternative to conventional three-phase ones. This is due to their usefulness in a niche of applications where the reduction in the total power per phase and, mainly, the high overall system reliability and the ability of using the multiphase machine in faulty conditions are required. Electric vehicle and railway traction, all-electric ships, more-electric aircraft or wind power generation systems are examples of up-to-date real applications using multiphase machines, most of them taking advantage of the ability of continuing the operation in faulty conditions. Between the available multiphase machines, symmetrical five-phase induction machines are probably one of the most frequently considered multiphase machines in recent research. However, other multiphase machines have also been used in the last few years due to the development of more powerful microprocessors. This chapter analyzes the behavior of generic n-phase machines (being n any odd number higher than 3) in faulty operation (considering the most common faulty operation, i.e. the open-phase fault). The obtained results will be then particularized to the 5-phase case, where some simulation and experimental results will be presented to show the behavior of the entire system in healthy and faulty conditions. The chapter will be organized as follows: First, the different faults in a multiphase machine are analyzed. Fault conditions are detailed and explained, and the interest of a multiphase machine in the management of faults is stated. The effect of the open-phase fault operation in the machine model is then studied. A generic n-phase machine is considered, being n any odd number greater than three. The analysis is afterwards particularized to the 5-phase machine, where the open-phase fault condition is managed using different control methods and the obtained results are compared. Finally, the conclusions are presented in the last section of the chapter.

Published
2015

28. La rendición de cuentas en Tabasco, una lucha más allá de la transparencia.

Author

Arias Rodríguez, José Manuel and Ireta Guzman, Hugo

Abstract

Copyright of Media Development is the property of World Association for Christian Communication and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2015

29. READER RESPONSE.

Author

KLIEN, BARRY, CAMERON, STEFFANI, LEE, STEVE, LISSOWAY, TROY, GUZMAN, HUGO, MUELLER, TIM, WEBER, JON, GREENHOUSE, JEFF, and HUGHES, DAMIEN

Subjects
*LETTERS to the editor, *BLOGS
Abstract

Letters to the editor are presented in response to the article "Crispin's Breakup With the King Results in $300 Million Whopper Sacrifice," published in the March 21, 2011 issue, "Let's Pray for the Safe Release of the BoingBoing Bloggers" by Simon Dumenco in the March 28, 2011 issue, and "Will Ads in Real Time Be Facebook's Holy Grail?" in the March 28, 2011 issue.

Published
2011

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