IPM Motor
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[JAC286] IPM Motor Iron Loss Analysis Accounting for PWM -Evaluation with Different Modulation Methods-
In this example, the effects on iron loss when the modulation method for PWM control is changed are evaluated.
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[JAC273] Creating IPM Motor Efficiency Maps Accounting for AC Loss
In this example, an IPM motor efficiency map that accounts for AC loss from a PWM is created, and a comparison with an efficiency map that does not account for AC loss is performe…
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[JAC205] Analyzing the Torque Characteristics of IPM Motors Using a Thermal Equivalent Circuit
Here, we confirm a situation where temperature increases due to eddy current of the iron loss and magnet, which causes demagnetization of the magnet and torque reduction.
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[JAC215] Simulation of an IPM Motor with a Delta Connection Using a Control Simulator and JMAG-RT
In this example, a JMAG-RT model is incorporated into a control/circuit simulator to monitor the circulating current when an IPM motor is being driven.
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[W-MA-49] Necessity and Approach of Stray Load Loss Analysis
The main components of loss depend on the operating point. One of these components is stray load loss.
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[W-SE-94] Improving Automatic Mesh Generation Speed for 3D Solid Models
Magnetic field simulation tends to be run as a large-scale analysis lately, being backed by the remarkable performance improvement of the computer. JMAG features a high-performanc…
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[JAC279] Thermal Analysis Accounting for Cooling of the IPM Motor
In this example, thermal equivalent circuit is used to run thermal analysis of a 3-phase IPM motor that accounts for cooling, and check the temperature change in the coil.
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[JAC018] Thermal Analysis of a Motor
In this example, how to evaluate a motor's temperature distribution by creating a thermal analysis model that can investigate the loss analysis and temperature distribution in ord…
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[JAC262] IPM Motor Thermal Demagnetization Analysis with Incomplete Magnetization of Dy Diffusion Magnets
In this example, a motor using Dy diffused magnets the thermal demagnetization resistance of the Dy diffused magnets with a coercive force distribution when there is incomplete ma…
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[W-VI-97] Correlation Analysis for Matching Stiffness between Actual Machine and Analysis Model
If vibration can be estimated with high accuracy, the cost of prototype and testing can be reduced, and thus the reduction of the overall product development time is achievable.
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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-MO-114] Comparison of Efficiency Map with Measurement
This document compares an efficiency map obtained with simulations with an efficiency map consisting of actual measurements, achieving an error of 1% or less for entire regions.
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[W-MA-67] On the Geometry Edge Effects in Laminated Steel Sheet Eddy Current Loss Analysis
In this white paper, based on the results of this analysis, the scenarios where the 2D + 1D method degrades accuracy are made clear and issues to be addressed in the future are pr…
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[W-OP-119] Global Design Search of Multi-Objective Multi-Constraint Optimization Issues by Narrowing Down Design Spaces
This document shows a reduction in calculation costs by narrowing down the design space as an optimization calculation pre-process using PM motor optimization issues as an example…
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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.
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[JAC222] Irreversible Thermal Demagnetization Analysis of Incompletely Magnetized Magnets
In this example, analysis is performed while varying the temperature of magnetized magnets, and then the influence on the torque waveform and magnetic flux density distribution is…
