Convergence improvement in two-dimensional finite element nonlinear magnetic problems—a fuzzy logic approach

Arjona, M. A.; Escarela‐Perez, R.; Melgoza-Vázquez, Enrique; Hernández, C.

doi:10.1016/j.finel.2004.10.002

Cited by 4 publications

(3 citation statements)

References 26 publications

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“…Not many authors have investigated the influence of slot opening on waveform of internal voltage in detail [1]- [5]. The reason of this is that the complexity of non-linear behavior of the iron makes FEM program difficult to be convergent in transient mode, [7], [8], [14]. In this section, we will discuss ways calculating internal voltage including magnetic saturation.…”

Section: A Magnetic Saturation Problem and Calculation Methodsmentioning

confidence: 99%

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Modeling magnetic saturation for the design of exterior rotor permanent magnet machines

Xuan

Lahaye

Hoeijmakers

et al. 2010

The 2010 International Power Electronics Conference - ECCE ASIA -

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This paper presents a concept in the form of a flow chart for analyzing and designing permanent magnet machine by finite element method (FEM) including rotor motion. According to our flow chart, geometry modeling will automatically be made by script. Therefore, it is easy in changing design parameters. Two programs have been developed based on the proposed flow chart, one for static solution and the other for nonlinear transient solution. The magnetic saturation model and solvers have been discussed. These ensure that the FEM program is convergent and runs faster during high saturation. The influence of slot opening on the magnetic field and internal voltage is investigated. Results are used to select slot opening for maximizing internal voltage.Index Terms--Concentrated windings, design flow chart, magnetic saturation, permanent magnet machine, FEM, slot opening.

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Section: A Magnetic Saturation Problem and Calculation Methodsmentioning

confidence: 99%

“…A reason is that FEM program for rotating electric machine is easily convergent with linear magnetic circuit. It is, however, difficult to converge in transient mode during magnetic circuit deep saturation [7], [8]. Moreover, so much time is spent changing geometry modeling of PM machine.…”

Section: Introductionmentioning

confidence: 99%

Modeling magnetic saturation for the design of exterior rotor permanent magnet machines

Xuan

Lahaye

Hoeijmakers

et al. 2010

The 2010 International Power Electronics Conference - ECCE ASIA -

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“…FLS is one of the most famous applications of fuzzy logic and fuzzy sets theory. They can be helpful to achieve classification tasks, offline process simulation and diagnosis, online decision support tools and process control [22].…”

Section: A) a Fuzzy Logic Systemmentioning

confidence: 99%

A Fuzzy Approach to Classify Learning Disability

Manghirmalani¹,

More²,

Jain³

2012

IJARAI

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-The endeavor of this work is to support the special education community in their quest to be with the mainstream. The initial segment of the paper gives an exhaustive study of the different mechanisms of diagnosing learning disability. After diagnosis of learning disability the further classification of learning disability that is dyslexia, dysgraphia or dyscalculia are fuzzy. Hence the paper proposes a model based on Fuzzy Expert System which enables the classification of learning disability into its various types. This expert system facilitates in simulating conditions which are otherwise imprecisely defined.

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A new error estimation approach based on fuzzy logic system for H-R adaptive boundary element method

Chen

Zhou

Zhang

et al. 2011

Applied Mathematics and Computation

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Convergence improvement in two-dimensional finite element nonlinear magnetic problems—a fuzzy logic approach

Cited by 4 publications

References 26 publications

Modeling magnetic saturation for the design of exterior rotor permanent magnet machines

Modeling magnetic saturation for the design of exterior rotor permanent magnet machines

A Fuzzy Approach to Classify Learning Disability

A new error estimation approach based on fuzzy logic system for H-R adaptive boundary element method

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