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Machines, Volume 3, Issue 1 (March 2015) , Pages 1-54

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Open AccessArticle
A Novel Approach to the Design of Axial-Flux Switched-Reluctance Motors
Machines 2015, 3(1), 27-54; https://doi.org/10.3390/machines3010027 - 03 Mar 2015
Cited by 5 | Viewed by 5033
Abstract
This paper presents the design of a new axial-flux switched-reluctance motor (AFSRM) topology for in-wheel drive vehicle applications. The features of the topology include a short flux path and an outer-rotor configuration. The proposed topology also uses a sintered-lamellar soft magnetic composite core [...] Read more.
This paper presents the design of a new axial-flux switched-reluctance motor (AFSRM) topology for in-wheel drive vehicle applications. The features of the topology include a short flux path and an outer-rotor configuration. The proposed topology also uses a sintered-lamellar soft magnetic composite core material, and permits displacement of the rotor along the suspension axis, which reduces damage to the stator caused by impacts and vibrations. The combination of these features makes this new topology competitive with other in-wheel motors in regard to torque density, durability, and cost. To describe the behaviour of the topology, a model of the topology is developed using a new integral inductance function. That model is used to select the design parameters of an 8/6 AFSRM, for which a fuzzy controller is also developed to control the phase current. Several simulations of the 8/6 AFSRM are performed to calculate its energy conversion efficiency, thermal performance, and torque density, and results indicate that the new AFSRM has a higher energy conversion efficiency, and can produce more torque/kg than other switched-reluctance motors used for in-wheel drive vehicle applications. Full article
(This article belongs to the Special Issue Advances in Control Engineering)
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Open AccessArticle
Effect of Short-Circuit Faults in the Back-to-Back Power Electronic Converter and Rotor Terminals on the Operational Behavior of the Doubly-Fed Induction Generator Wind Energy Conversion System
Machines 2015, 3(1), 2-26; https://doi.org/10.3390/machines3010002 - 27 Feb 2015
Cited by 7 | Viewed by 4158
Abstract
This paper deals with the operational behavior of the Doubly-Fed Induction Generator Wind Energy Conversion System under power electronic converter and rotor terminals faulty conditions. More specifically, the effect of the short-circuit fault both in one IGBT of the back-to-back power electronic converter [...] Read more.
This paper deals with the operational behavior of the Doubly-Fed Induction Generator Wind Energy Conversion System under power electronic converter and rotor terminals faulty conditions. More specifically, the effect of the short-circuit fault both in one IGBT of the back-to-back power electronic converter and in rotor phases on the overall system behavior has been investigated via simulation using a system of 2 MW. Finally, the consequences of these faults have been evaluated. Full article
(This article belongs to the Special Issue Advances in Machinery for Renewable Power Generation)
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Open AccessEditorial
Acknowledgement to Reviewers of Machines in 2014
Machines 2015, 3(1), 1; https://doi.org/10.3390/machines3010001 - 09 Jan 2015
Cited by 1 | Viewed by 1600
Abstract
The editors of Machines would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2014:[...] Full article
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