[JAC148] Loss Analysis of a Power Transformer (Flyback Converter)

A magnetic field analysis simulation based on the finite element method (FEM) can precisely evaluate the complex loss distributions of the coil and core, so it is optimal for an a…

• Applications: Transformer / Reactor
• Physical Phenomena: Magnetic Field

[JAC060] Superimposed Direct Current Characteristic Analysis of a Reactor

This Application Note explains a case example that obtains the superimposed direct current characteristics of a high-frequency reactor when the gap width is changed.

• Applications: Transformer / Reactor
• Physical Phenomena: Magnetic Field

Tamagawa Seiki Co., Ltd.

“Developing technology and selling technology”, based on this corporate philosophy, Tamagawa Seiki has grown with firm roots in the local community of its offices and production c…

• Applications: Motor
• Physical Phenomena: Magnetic Field, Structural, and Thermal
• Technical Themes: Design Exploration / Optimization

[W-OP-165] Solving Geometry Conflicts in GA Optimizations with Large Numbers of Geometric Parameters

Genetic Algorithm (GA) based optimization with finite element analysis is expected to become a solution for high performance motor designs which need to satisfy many strict requir…

• Applications: IPM Motor and Motor
• Physical Phenomena: Magnetic Field and Structural
• Technical Themes: Design Exploration / Optimization

[JFT083] Automating the Multi-Purpose File Export Tool with Command Lines

This document describes the method for automating the multi-purpose file export tool.

• Technical Themes: Multiphysics

[JAC289] Efficiency Map Creation for Wound-Field Synchronous Motors

In this example, efficiency maps for a wound-field synchronous motor are created to check the combinations of currents that result in maximum efficiency. In addition, the loss bre…

• Applications: Motor and Wound-Field Synchronous Motor
• Physical Phenomena: Magnetic Field
• Technical Themes: Efficiency map

[JAC207] Transfer Torque and Efficiency Analysis of Magnetic Gear

In this example, the transfer torque and transfer efficiency are obtained with magnetic field analysis for the flux modulated type magnetic gear using permanent magnets for the in…

• Applications: Magnetic Gear
• Physical Phenomena: Magnetic Field

[JFT186] Automatic Winding Scheme Selection

This document describes this unique feature and the procedures to switch between several automatic winding schemes available in JMAG.

[JAC139] Power Transmission Analysis Using Magnetic Resonance Phenomena

This Application Note presents how to confirm the power transmission efficiency and the magnetic flux density distribution.

• Applications: Wireless Power Transfer
• Physical Phenomena: Magnetic Field

[JFT187] Direct Coupled Magnetic Field and Structural Analysis Accounting for Changes Over Time

This document describes the procedures to run a direct two-way coupled magnetic field and structural analysis that takes into account the changes over time.

• Technical Themes: Multiphysics

[L-TR-44] Winding Vibration Analysis of a Power Transformer

Winding vibration originating from a transformer is a vibration phenomenon that uses Lorentz force as the vibration force, which occurs when leakage flux from the winding acts on …

• Applications: Transformer / Reactor
• Physical Phenomena: Magnetic Field and Structural
• Technical Themes: Multiphysics

[L-SE-59] Detailed Modeling for Harmonic Loss Analysis

In IPM motors driven by PWM inverters, eddy current losses occur due to carrier higher harmonics. For higher efficiency, it is important to evaluate higher harmonic loss at design…

• Applications: IPM Motor and Motor
• Physical Phenomena: Magnetic Field
• Technical Themes: Large-Scale Processing