White Papers
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[W-MB-64] Modeling Loss in JMAG-RT
In this paper, we explain how loss is modeled in a JMAG-RT model.
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[W-MA-87] Verification of the Accuracy of Minor Loop Loss Using a Play Model
In this paper, from the minor loop loss with DC superposition being measured and compared with results using the play model, it was verified that the play model can reproduce the …
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[W-MO-13] Evaluation of a 2D Brush Motor Analysis Accounting for 3D Geometry
In this applied case, the structure of a 2D analysis model accounting for 3D geometry is evaluated through the comparison with a 3D analysis model. The modeling validity is proved…
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[W-MB-65] The Necessity of JMAG-RT 3D Models
In this paper, the necessity of 3D FEA models in plant model generation will be discussed.
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[W-MO-164] Investigation in the Accuracy of FEA Based Efficiency Maps for PMSM Traction Machines
In this report, three methods are compared on a PMSM showing that the accurate version is necessary for advanced applications such as EV. It shows that the accurate version based …
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[W-MA-21] Iron Loss Analysis of an SR Motor Accounting for Hysteresis and Eddy Current Distribution
We used a new method which can evaluate iron loss in high accuracy even with magnetic density wave form for SR motors, and gained positive results when comparing with actual measu…
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[W-SE-73] Influence of Element Shapes Near the Coil on Convergence
Mesh is essential for the accuracy and convergence of iterative calculations such as ICCG in the finite element method.
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[W-TR-15] Loss Evaluation of a Transformer Shield Based on the Homogenization Method
In this paper, each electromagnetic steel sheet of the shield is not modeled; by applying the homogenization method which replaces magnetically and electrically equivalent materia…
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[W-MB-63] Method for Determining the Optimum Resolution of JMAG-RT Model
In this paper, we present a method to increase the resolution of a JMAG-RT model iteratively while performing system simulation.
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[W-MB-102] Motor Efficiency Map Evaluation for Model-Based Development (MBD) Using FEA Simulation
In MBD, it is necessary to evaluate devices characteristics without having to wait for the manufacturing of a prototype.
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[W-SE-53] Transition to Steady State in a Short Time
In the following, it is shown that the steady state analysis results can be obtained with less number of time steps by using the TP-EEC method.
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[W-MA-76] Material Modeling Method for Electromagnetic Field/Iron Loss Analyses Considering Residual Strain
This paper proposes an electromagnetic field analysis and iron loss analysis based on the assumption that the effect of punching can be expressed as a function of the distance fro…
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[W-MA-111] Improvements in Accuracy of Anomalous Eddy Current Loss Calculations (2)
The iron loss analysis method the most commonly applied uses measured iron loss data (hereinafter referred to as the conventional method). In the conventional method, since the ap…
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[W-SE-113] Reduction of Calculation Time Using Equivalent Circuit Model
In electrical machine design, the use of coupled analysis between the electromagnetic FEA and the motor drive control circuit is necessary in order to have an understanding of the…
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[W-MB-167] Motor Plant Model Considering AC Loss for Control Calibration
Control parameter calibrations on Model-In-the-Loop Simulation (MILS) with Finite Element Analysis (FEA) based motor models is expected to be a standard procedure in the Model-Bas…
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[W-MA-100] Introducing the Detailed Analysis Method for Electromagnetic Steel Sheet for High-Precision Loss-Assessment
Here, we use a simple example and consider the significance of taking into account the eddy currents and magnetic hysteresis during magnetic field analysis.
