Optimizing the designing of a reactive homopolar synchronous machine with stator excitation

Deaconu, Sorin Ioan; Tutelea, Lucian; Popa, Gabriel Nicolae; Popa, I.; Abrudean, Cristian

doi:10.1109/iecon.2008.4758144

Cited by 8 publications

(15 citation statements)

References 5 publications

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“…1) Rotor Air Gap Permeance Case 1: These permeances are calculated as (16) and (17). The necessary derivatives can be calculated by differentiating these expressions with respect to x r i and multiplying by (19) …”

Section: Air Gap Flux Tubes and Rotor Motionmentioning

confidence: 99%

Magnetic Equivalent Circuit Modeling of the AC Homopolar Machine for Flywheel Energy Storage

Severson

Nilssen

Undeland

et al. 2015

IEEE Trans. Energy Convers.

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This paper develops a magnetic equivalent circuit model suitable to the design and optimization of the synchronous ac homopolar machine. The ac homopolar machine is of particular interest in the application of grid-based flywheel energy storage, where it has the potential to significantly reduce self-discharge associated with magnetic losses. The ac homopolar machine features both axial and radial magnetizing flux paths, which requires finite element analysis to be conducted in 3-D. The computation time associated with 3-D finite element modeling is highly prohibitive in the design process. The magnetic equivalent circuit model developed in this paper is shown to be a viable alternative for calculating several design performance parameters and has a computation time which is orders of magnitude less than that of 3-D finite element analysis. Results obtained from the developed model are shown to be in good agreement with finite element and experimental results for varying levels of saturation.Index Terms-Energy storage, finite element analysis, flywheels, magnetic equivalent circuit (MEC), renewable generation. ;).R. Nilssen and T. Undeland are with the Department of Electric Power Engineering,

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Section: Air Gap Flux Tubes and Rotor Motionmentioning

confidence: 99%

Magnetic Equivalent Circuit Modeling of the AC Homopolar Machine for Flywheel Energy Storage

Severson

Nilssen

Undeland

et al. 2015

IEEE Trans. Energy Convers.

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“…Recently the price increase of the permanent magnets forces the designers to reconsider the available solutions to electrically excited generators i.e. synchronous generators or induction generators [1,2]. Still, most electric generators are synchronous machines that need tight (rigid) speed control to provide constant frequency output voltage.…”

Section: Introductionmentioning

confidence: 98%

“…The RHHSM removes all these disadvantages, being destined to equip hydro-electric or wind power stations of low and middle power. This machine can be used also as servomotor due to the armature's reduced inertia [2,3]. In present paper we introduce a new topology of variable reluctance synchronous generator for low power applications.…”

Section: Introductionmentioning

confidence: 99%

“…The new topology is characterized by an electrical excitation winding placed in stator. Placing both the DC excitation coils and the three-phase AC winding on the stator characterizes this topology of homopolar (figure 1) [2,3], or homo-heteropolar synchronous machine (figure 2) [4][5][6]. The attractive advantages of this kind of machine are its better controllability in the very large speed range and the flexibility of the output generator characteristics [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Homo-heteropolar synchronous machine for low power variable speed wind or hydro applications: Design, 3D FEM validation and control

Topor

Deaconu

Tutelea

2014

2014 16th European Conference on Power Electronics and Applications

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“…Reference [1] presented a new form of heteropolar linear synchronous machine that is capable of providing both thrust and lifting force at relatively high efficiencies and power factor. In [2] is presented a rotary reactive homopolar synchronous machine with stator excitation which removes the disadvantages of the classic synchronous machines.…”

Section: Introductionmentioning

confidence: 99%

Modeling and experimental investigations of a reactive homo-heteropolar brushless synchronous machine

Deaconu

Topor

Tutelea

et al. 2009

2009 35th Annual Conference of IEEE Industrial Electronics

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In this work is presenting a reactive homoheteropolar brushless synchronous machine (RHHBSM), with stator excitation destined to operate as low power generator in hydroelectric, or wind power stations, or as servomotor with reduced inertia. We proposed in this paper a modeling and a simulation method by electric-magnetic coupled network, based on the permeance network, 3D analysis with a specialized software and the machine's orthogonal model.One prototype machine has been studied. Within this paper, we make a comparison between the results obtained by modeling with the magnetic equivalent circuits, finite element method and experimental results.I.

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Optimizing the designing of a reactive homopolar synchronous machine with stator excitation

Cited by 8 publications

References 5 publications

Magnetic Equivalent Circuit Modeling of the AC Homopolar Machine for Flywheel Energy Storage

Magnetic Equivalent Circuit Modeling of the AC Homopolar Machine for Flywheel Energy Storage

Homo-heteropolar synchronous machine for low power variable speed wind or hydro applications: Design, 3D FEM validation and control

Modeling and experimental investigations of a reactive homo-heteropolar brushless synchronous machine

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