Incorporating Skew in a Magnetic Equivalent Circuit Model of Synchronous Machines

Ron, Wang; Pekarek, Steve; O'Regan, P. R.; Larson, Adam M.; Maaren, Rick van

doi:10.1109/tec.2014.2373034

Cited by 15 publications

(10 citation statements)

References 5 publications

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“…For considering the motion of the mover, x in (14) and (15) is substituted by x − d where d is the displacement of the mover that can be obtained as:…”

Section: Magnetic Flux Density Calculationsmentioning

confidence: 99%

“…13 Also, this model can cover different topologies of electrical machines. 14,15 However, to obtain the magnetic flux density distribution and the main quantities waveforms by MEC, it is necessary to divide the machine area to a suitable number of reluctance networks in which it becomes more complicated. Therefore, in the 0-D analytical model, there is no expectancy for accomplishing the machine quantities waveforms and this model mainly focuses on just a specified value of the related quantities like the maximum air-gap flux density.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison between 2‐D and 0‐D analytical models for slotless double‐sided inner armature linear permanent magnet synchronous machines

Ghaffari

Rahideh

Ghaffari

et al. 2020

Int Trans Electr Energ Syst

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Summary This article compares the 2‐D and 0‐D analytical models for the slotless double‐sided inner armature linear permanent magnet synchronous machines (SDSIALPMSMs). The sub‐domain method is implemented to achieve the 2‐D analytical model. In this method, the cross‐section of the motor is divided into eleven sub‐regions and the Maxwell equations are determined for each sub‐region. In the presented 0‐D model, a magnetic equivalent circuit (MEC) is derived to compute the maximum magnetic flux density in the air‐gap. In both approaches, the magnetic flux density is analytically calculated to predict the inductance, induced voltage, flux linkage and electromagnetic forces. Ultimately, the results of both analytical models are validated against those of the 3‐D finite‐element method (FEM) analysis. These results confirm the superiority of the 2‐D analytical model compared with that of the 0‐D in the terms of the accuracy of the magnetic flux density, induced voltage, self and mutual inductances as well as the tangential and normal electromagnetic forces. Also, less computational time of the described 2‐D analytical model is recognized as a merit compared with FEM models.

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“…For considering the motion of the mover, x in (14) and (15) is substituted by x − d where d is the displacement of the mover that can be obtained as:…”

Section: Magnetic Flux Density Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison between 2‐D and 0‐D analytical models for slotless double‐sided inner armature linear permanent magnet synchronous machines

Ghaffari

Rahideh

Ghaffari

et al. 2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…In 1 study, the modified WFT has been proposed for machines with the asymmetrical air gap by Faiz et al but saturation effect has been neglected. Recently, there have been some new investigations on MEC modeling besides WFT and FEM . In these researches conducted in MEC modeling area, the magnetic and electric equations have been considered separately and some technical approaches have been used for their coupling.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, there have been some new investigations on MEC modeling besides WFT and FEM. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] In these researches conducted in MEC modeling area, the magnetic and electric equations have been considered separately and some technical approaches have been used for their coupling. However, these ways cussed excessive complexity in modeling and simulation methods, which may lead to a large simulation processing time.…”

Section: Introductionmentioning

confidence: 99%

“…Although, this method is effective for saturation effect modeling but the computation procedure is more intensive compared with other numerical methods such as Newton‐Raphson method. Three deep researches for salient pole synchronous machine have been presented in the previous studies using MEC in which saturation effect is considered. Presented method for salient pole synchronous machine modeling has been addressed as well.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and stator Inter‐Turn short circuit fault detection for saturable salient pole synchronous machine by a non‐linear magnetic equivalent circuit approach

Naderi

Ghandehari

2017

Int J Numerical Modelling

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This paper presents a novel and adequate model for healthy and faulty salient pole synchronous machines with and without interturn short circuit fault. The model is presented for a machine with arbitrary pole numbers, arbitrary damper bars, and stator slot numbers. The magnetic equivalent circuit with nonlinear elements is used for modeling, and numerical techniques based on Newton‐Raphson method have been approved for solving of nonlinear equations. Because the design of electric machines is based on the knee point of a B‐H curve, consideration of saturation effect is mandatory for adequate studying. Because of the saturation effect, there are some nonlinear algebraic magnetic equations, which should be solved simultaneously with differential equations. Trapezoidal technique is used for differential equations converting to algebraic type, and Newton‐Raphson method is used for a nonlinear set equation solving. Stator current signature analysis is used for stator interturn short circuit fault detection. Finally, obtained results by finite element method are used to verify the effectiveness of the proposed modeling method. The proposed approach for magnetic equations based on nodal potential and reluctance mesh model equations is one of the paper novelties for the salient pole synchronous machine modeling in both healthy and faulty cases. This dynamic modeling method has less complexity compared to finite element method and pure nodal potential approaches. Solving the electric and magnetic equations by a single set of equations is the main advantage of the presented method, which has been addressed for a salient pole synchronous machine for the first time. Another advantage of the proposed study is the capability of modeling the healthy and faulty machine with interturn fault by a single model.

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Minimizing the Influence of Cogging Torque on Motor Performance of PM Synchronous Machines for Elevator Applications

Polat

Akyun²,

Nory

2022

Arab J Sci Eng

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Incorporating Skew in a Magnetic Equivalent Circuit Model of Synchronous Machines

Cited by 15 publications

References 5 publications

Comparison between 2‐D and 0‐D analytical models for slotless double‐sided inner armature linear permanent magnet synchronous machines

Comparison between 2‐D and 0‐D analytical models for slotless double‐sided inner armature linear permanent magnet synchronous machines

Modeling and stator Inter‐Turn short circuit fault detection for saturable salient pole synchronous machine by a non‐linear magnetic equivalent circuit approach

Minimizing the Influence of Cogging Torque on Motor Performance of PM Synchronous Machines for Elevator Applications

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