Results 251 to 260 of about 17,470 (285)
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2020
In this chapter, the benchmark SG presented in Chap. 4 will be used to develop HG designs suitable for the wind generation scheme discussed in Chap. 3. The HG designs are evolved from benchmark machine design maintaining magnetic and electric loading equivalence so as to realize designs that have some practical validation.
Omid Beik, Ahmad S. Al-Adsani
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In this chapter, the benchmark SG presented in Chap. 4 will be used to develop HG designs suitable for the wind generation scheme discussed in Chap. 3. The HG designs are evolved from benchmark machine design maintaining magnetic and electric loading equivalence so as to realize designs that have some practical validation.
Omid Beik, Ahmad S. Al-Adsani
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Multiphase machines with individual slot activation
Electrical Engineering, 2018Under the aspect of decreasing costs for power electronic elements due to mass production, machines with feeding from multiphase inverters can be considered where each slot is activated as a separate phase. The number of IGBT switches is increased, but the current rating of the IGBTs becomes very small, thus reaching the region of cheap mass production
W.-R. Canders, H. Mosebach
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Multiphase machines for electric vehicle traction
2014 IEEE Transportation Electrification Conference and Expo (ITEC), 2014To have greater impact on application it is desirable to integrate machines and their associated power electronic converters into complicated systems that share component count to minimise cost. However, while compactness of systems is achieved, reliability of the power conversion components can be compromised by the arduous nature of system operating ...
Nigel Schofield, Xin Niu, Omid Beik
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Refurbishing three-phase synchronous reluctance machines to multiphase machines
Electrical Engineering, 2020Refurbishing electrical machines to have a higher performance and/or reliability is a clear trend in the circular economy. This paper investigates the gain in efficiency, torque density and reliability with replacing the windings and the iron of the stator of existing three-phase synchronous reluctance machines (SynRMs), resulting in a multiphase ...
Kotb B. Tawfiq +3 more
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Axially Stacked Multiphase Flux Reversal Machine
IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019This paper introduces a novel three-phase flux reversal machine. Unlike conventional machines, the proposed machine is based on a multi-layered design with three magnetically independent rotors and stators on the same shaft. Each layer represents a single-phase flux reversal machine (FRM), which is mechanically shifted against each other.
Jaeho Ryu, Ingo Hahn
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2019
Variable-speed AC drives are nowadays based on three-phase electrical machines fed by power electronic converters acting as power interface between the electrical machine and AC or DC power sources. Nevertheless, in the last two decades the multiphase electrical drives have become an interesting alternative for particular applications.
Bojoi R., Zarri L.
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Variable-speed AC drives are nowadays based on three-phase electrical machines fed by power electronic converters acting as power interface between the electrical machine and AC or DC power sources. Nevertheless, in the last two decades the multiphase electrical drives have become an interesting alternative for particular applications.
Bojoi R., Zarri L.
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On performance figures of multiphase machines
2008 18th International Conference on Electrical Machines, 2008Various performance aspects of multi-phase machines are investigated with the main focus on 6-phase (dual stator) synchronous machines. It is shown that 6-phase machines have benefits over their 3-phase counterparts regardless of machine topology i.e., PM, induction or synchronous. Differences between 6-phase and 3-phase machines are emphasized through
Kashif S. Khan +2 more
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Pulsating torque and losses in multiphase induction machines
IEEE Transactions on Industry Applications, 2002In this paper, the authors take a high-level look at multiphase induction machines in order to examine those aspects that are not design specific. They show that for a machine in which the only design variable is the phase number; the main target for loss reduction is the stator copper loss, which by the use of more than three phases may be attenuate ...
Williamson, Steve, Smith, Sandy
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Multiphase Load-flow Solution and Initialization of Induction Machines
2018 IEEE Power & Energy Society General Meeting (PESGM), 2018This paper presents a new method to model induction machines (IMs) in multiphase load-flow calculations. Fast convergence of the load-flow solution is achieved using an iterative Newton method in the modified-augmented-nodal-analysis (MANA) formulation. The multiphase modeling approach allows accounting for unbalanced networks.
Ilhan Kocar +3 more
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Physical variable modeling of multiphase induction machines
2008 Canadian Conference on Electrical and Computer Engineering, 2008Models of non-standard induction machines with number of phases higher than 3 are not commonly available and require special effort to implement. This paper presents a model of induction machine with arbitrary number of phases on the stator and rotor, which has been implemented in Matlab-Simulink.
null Liwei Wang +3 more
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