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  1. [W-MA-88] Improvements in Accuracy of Anomalous Eddy Current Loss Calculations (1)

    In iron loss analysis, conventionally, methods using previously measured iron loss data have been mainly used (hereinafter referred to as conventional methods).

  2. [W-OP-96] Necessity of GA for Multi-Objective Optimization of Drive Motor

    In this paper, the multi-objective optimization calculation has 12 design variables (8 geometric variables, 4 circuit variables) with 6 objective functions (maximize torque, minim…

  3. [W-MO-114] Efficiency Map Measurement Comparisons

    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. T…

  4. [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…

  5. [W-SE-145] Highly Parallel Solver Performance Evaluation (Induction Heating)

    This document uses as an example an induction heating model to evaluate the performance of the highly parallel solver. As a result, it was found that even in thermal-magnetic fiel…

  6. [W-SE-101] Detailed Eddy Current Analysis of End Winding with Parallel Processing

    To accurately obtaining the end-winding eddy current loss at high rotation speed, the influence of the magnetic field flux generated by the eddy current flow in every part of the …

  7. [W-MO-17] Alternator Analysis Using Tetrahedral/Pentahedral Mixed Mesh

    This paper looks at tetrahedral/pentahedral mixed mesh and aims to generate effective mesh to reduce calculation time. We compared calculation times and accuracy when analysis is …

  8. [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…

  9. [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.

  10. [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…

  11. [W-MO-12] Comparative Evaluation of Synchronous Impedance of a 2D Model and a 3D Model

    This case study makes the differences clear between 2D and 3D models by comparing the synchronous impedances obtained from the analysis results of 2D and 3D models, and shows that…

  12. [W-MA-67] On the Geometry Edge Effects in Laminated Steel Sheet Eddy Current Loss Analysis

    As rotating machines increase in speed and geometries become more complicated, prediction of performance by loss calculations become increasingly important.

  13. [W-SE-75] Iterative Calculations and Convergence Characteristics

    In this report, we will explain the convergence criteria of a local quantity and the improvement of the determination of convergence of ICCG. And then, we describe that these idea…

  14. [W-SE-72] Reduction of Time Steps by Using Time Periodic Explicit Error Correction Method

    In electrical equipment design, Computer Aided Engineering (CAE) software is used to make the best possible products within allowable timelines.

  15. [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.

  16. [W-SE-74] Electromagnetic Force Calculations Using the Adaptive Function

    In this report, we clarify the causes of measurement errors for electromagnetic force as well as show that adaptive analysis can be the way to solve this issue. As a calculation m…

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