Finite element analysis of electrical machines
Citations
182 citations
Cites methods from "Finite element analysis of electric..."
...The cogging torque can be computed by finite-element analysis using either Maxwell’s stress tensor or the virtual work technique [ 36 ]‐[40]....
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...On the other hand, the virtual work method is generally easier to implement [ 36 ]....
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...However, since 3-D modeling is generally required for analyzing the cogging torque in AFPM machines [29]‐[35], and this remains relatively time consuming [ 36 ], [37], analytical techniques are combined with 3-D finite-element analyses whenever possible in order to simplify the calculation....
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169 citations
Cites background from "Finite element analysis of electric..."
...The eddy current region in the stator winding is thus modeled as a nonconductive area [11]....
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141 citations
Cites methods from "Finite element analysis of electric..."
...The integration term in (4) indicates the magnetic force to the -direction by the Maxwell stress tensor method [12]....
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137 citations
Cites methods from "Finite element analysis of electric..."
...The proposed approach employs a 2-D magnetostatic FE formulation based on the following quasi-Poissonian equation [18]:...
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124 citations
Cites methods from "Finite element analysis of electric..."
...FEA and CFD are geometrically generic and can accurately predict the temperature field in SRMs, but they generally require extended setup and computation times, which limits their integration into the EM design and optimization process....
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...The methods for modeling the thermal conditions in electric machines include thermal circuit approaches and numerical techniques such as thermal FEA and computational fluid dynamics (CFD)....
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...Because it is difficult or even impossible to obtain the variational expression in some particular cases of machinery analysis, the Galerkin approach is more popular due to the greater generality and is employed in most commercial FEA solvers....
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...The FEA subdivides the entire solution domain into small, simpler parts called finite elements (FEs), assembles the equations associated with each element into a larger system of algebraic equations, and yields approximate values of the unknowns at discrete number of points over the domain....
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...The merits of the FEA for an SRM design lie in the following aspects: the assignment of the elements is flexible and covers the entire solution domain, making it adaptable to any complex or irregular machine geometries; it can provide an accurate solution of the magnetic field distribution in the subdomains with inhomogeneous properties, e.g., the laminated core with anisotropic and nonlinear permeability, by applying iterative algorithms; the FEA system matrix is sparse, symmetric, and diagonal dominant, which facilitates faster solution algorithms and allows reduced memory occupation....
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