Analysis of cage induction motor by means of the finite element method and coupled system of field, circuit and motion equations

Savov, V. N.; Georgiev, Zh. D.; Bogdanov, E. S.

doi:10.1007/bf01235666

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…The stator and rotor are both constructed of: a) The electric circuit, which is often built of insulated aluminum or copper winding, carries current b) The magnetic circuit, which is typically constructed from a series of laminated silicon steel laminations pressed together to produce a cylindrical magnetic circuit to carry MFD current There are many important equations to consider when designing an induction motor stator [26]- [31]. For full pitch, pitch factor (𝐾 𝑝 = 1).…”

Section: Induction Motor Constructionmentioning

confidence: 99%

Enhancing performance for three-phase induction motor by changing the magnetic flux density and core material using COMSOL

Ahmed

Hussain²,

Salih³

2022

IJECE

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This paper presents a proposed design and analysis of a three-phase squirrel cage induction motor when changing of internal characteristic design for the three-phase induction motor. Two situations have been applied to enhancing the performance of the three-phase induction motor. The first situation has been implemented by changing the magnetic flux density (MFD) via the build of the six-phase for the same induction motor. The second situation has been implemented by changing core materials of the rotor part of the induction motor, like aluminum (AL) and cast iron (CI). The finite element method (FEM) has been used to analyze the rotor part, also to obtain the representation and simulation of the realty cylindrical rotor part of motor. The frequency domain (FD) analysis using to obtain the results within the environment of the COMSOL multiphysics 5.5 version.

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Section: Induction Motor Constructionmentioning

confidence: 99%

Enhancing performance for three-phase induction motor by changing the magnetic flux density and core material using COMSOL

Ahmed

Hussain²,

Salih³

2022

IJECE

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“…There are no studies in the literature which demonstrate the effect of the different eccentricity conditions on the bridge currents and generated UMP in an electric machine with bridge configured winding. The finite element (FE) modeling is an efficient modeling technique for the investigation of machine behavior [14], [15]. Recently few authors have used finite element modeling for the investigation of unbalanced magnetic pull in different eccentricity conditions and the effect of parallel paths on unbalanced magnetic pull [11] - [13].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Bridge Currents and UMP of an Induction Machine With Bridge Configured Winding Using Coupled Field and Circuit Modeling

2018

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Unbalanced magnetic pull (UMP) reduction is an important aspect of high-speed electrical machines and it can be reduced using a specialized winding scheme called bridge configured winding (BCW). A bridge configuration winding has two parallel paths in each phase. The mid points of these two parallel paths can be short-circuited to achieve passive control of the unbalanced magnetic pull (UMP) or a power supply can be added in between these points to achieve active control of UMP. Moreover, it is important to understand the behavior of UMP in different eccentricity conditions for its active suppression. A finite element modeling of bridge configured induction machine has been developed to study the effects of different eccentricity conditions on UMP and bridge currents. A generalized circuit equation has been coupled with the field equation for the implementation of bridge configuration winding. All of the three kinds of eccentricity conditions have been simulated. In addition, two experimental setups have been developed to study the UMP induced vibration and to study the effect of eccentricity on bridge currents. Index Terms-Bridge configured winding (BCW), finite element method (FEM), induction machine, unbalanced magnetic pull (UMP).

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“…Detail algebraic representations of the basic procedures involved in 2D electromagnetic field analysis have been presented by Salon et al [1], in general for electromagnetic devices, such as, printer actuator, axisymmetric plunger, induction motor and later by Savov et al [2] for cage induction motor. The stator end windings and the endregions of the rotor cage are modeled by means of resistance and inductances, which are obtained from empirical formulae and from the 3D electromagnetic analysis in the end regions of the motor.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Analysis of a Bridge Configured Winding Cage Induction Machine Using Finite Element Method

Konwar¹,

Kalita²,

Banerjee³

et al. 2013

PIER B

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Abstract-A 2D finite element electromagnetic model that permits the simulation of a cage induction machine, involving the effects of eddy currents and coupling the field equation with the stator fieldcircuit equation, has been presented in this paper. Transformation matrix has been derived to incorporate specialized stator winding scheme called the bridge configured winding (BCW) in the coupled field circuit equation. The bridge configured winding scheme is capable of producing controllable transverse force by deliberately imparting asymmetric flux distribution in the machine air-gap. Steady state stator currents have been calculated using the time-stepping scheme with the rotor motion at constant speed allowing the FE model to take into account the harmonics due to the eccentricity (static) of the rotor. This work has furnished us with the 2D magnetic flux distribution in the whole finite element domain as well as sets out an electromagnetic model to study the electromechanical interaction between the eccentric rotor motion and the electromagnetic field. The results, in terms of variation of terminal currents (phase and bridge) and unbalanced magnetic pull (UMP) due to rotor eccentricity as well as asymmetric field (deliberately imparted by exciting the bridge), obtained from the simulation have been compared with analytical formulations as well as already published experimental results.

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Analysis of cage induction motor by means of the finite element method and coupled system of field, circuit and motion equations

Cited by 7 publications

References 10 publications

Enhancing performance for three-phase induction motor by changing the magnetic flux density and core material using COMSOL

Enhancing performance for three-phase induction motor by changing the magnetic flux density and core material using COMSOL

Analysis of Bridge Currents and UMP of an Induction Machine With Bridge Configured Winding Using Coupled Field and Circuit Modeling

Electromagnetic Analysis of a Bridge Configured Winding Cage Induction Machine Using Finite Element Method

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