Introducing JMAG-Designer Ver.23.2

25 September 2024

In September 2024, JMAG-Designer Ver. 23.2 was released.

JMAG is being developed to automate design. To this end, Ver. 23.2 has even more improved functionality. In order to achieve automated design, Ver. 23.2 has even more improved functionality.

This section picks up on the functional improvements and new features in Ver. 23.2.

Improved performance of optimization calculation. Efficiency CPU usage achieves an average of 75 % (750 times faster on average than one job at a time) when 1,000 optimization jobs are distributed, and dimension ranges are derived within 15 minutes that allow exploration of large areas while preventing shape breakdowns. You can explore the design space at high speed, making efficient use of computational resources.

JMAG can create surrogate models using the results of JMAG calculations. Surrogate models created in JMAG can be used in third party applications. As one example of how surrogate models can be used, you can perform AFM sizing. You can instantly get the AFM geometry that meets your motor power and voltage requirements.

JMAG-Express can evaluate motor windings for dielectric breakdown. The ability to evaluate for dielectric breakdown simultaneously with efficiency maps, temperatures, and stresses means that a more multi-disciplinary evaluation can be done earlier in the design process. Thus, you can reduce design rework.

An open-end winding model of WFSM can be created in JMAG-RT. You can use the circuit and control simulator to study the control of open-end winding motors, not only PM motors, but also WFSM. The extended applicability of JMAG-RT allows you to proceed with the design process for open-end winding motors while maintaining system compatibility.

We hope you will take advantage of the new JMAG.

What is JMAG-Designer Ver.23.2 ?

1. Accelerating multi-case distributed processing for small-scale models

Improved performance of optimization calculations with more than 1,000 simultaneous jobs.

Efficiency of CPU usage in optimization calculationsEfficiency of CPU usage in optimization calculations

The performance when there is a large number of simultaneous jobs has been improved. Achieved an efficiency of CPU usage of 75 (%) for 1,000 jobs and 60 (%) for 2,000 jobs respectively. The calculation time per job is approximately 30 to 340 seconds.

2. Speed-up of distributed processing of the Range Finder*

Can generate initial cases in a shorter time even for large-scale optimization.

Running time when processing 100 to 1,000 distributed jobsRunning time when processing 100 to 1,000 distributed jobs

A performance problem at large number of distributed jobs has been resolved. The Range Finder finishes within 15 minutes even for 1,000 distributed jobs in Ver.23.2.

*Optional feature to fix CAD parameter ranges and get valid geometries for initial cases

3. Output function of Surrogate model

Sizing using a surrogate model.

AFM Sizing Using Surrogate ModelsAFM Sizing Using Surrogate Models

The surrogate model can quickly predict response values. This feature can be used to immediately obtain a set of dimensions that meet requirements such as voltage, power, etc.

Documents

Users need to request a license to use the surrogate model creation feature. Please see Introducing New Functions of JMAG-Designer Ver. 23.2 for information about the surrogate model creation feature. The application form to request a license is found here. ( User authentication)

4. Insulation Design Scenario

Multidisciplinary evaluation reduces design rework.

Pareto differences with and without insulation requirementPareto differences with and without insulation requirement

Comparing points A and B, point A has higher efficiency, but the breakdown factor is 1.89. It is necessary to adjust the winding specifications to satisfy the insulation requirement, but this will also affect motor performance, resulting in significant rework.

5. Open-end winding in a 3-phase WFSM model

Consider control with open-end windings of common power supply systems.

Analysis of dual inverters in common power supply systemAnalysis of dual inverters in common power supply system

As output increases, the currents cannot follow the control target with a single inverter drive system (star connection), but can be controlled by switching to dual inverter drive system (open-end winding).

Documents

The new functions and Features

For details, please see the following function introduction. (PDF, 1.89 MB:  User authentication)

Introducing New Functions of JMAG-Designer Ver. 23.2 

Documents

These are created using the functions in JMAG-Designer Ver.23.2 and later. Please feel free to use them.

Global Design Exploration and Optimization

Multi-disciplinary Evaluation

JMAG-Express

JMAG-RT

Module Download

The latest version of JMAG modules are available.
In addition, version information, release notes, manuals, etc. can be used. ( User authentication)

Module Download 

Users need to request a license to use the surrogate model creation feature. Please see Introducing New Functions of JMAG-Designer Ver. 23.2 for information about the surrogate model creation feature. The application form to request a license is found here. ( User authentication)

Introducing JMAG-Designer Ver.17.0 – Ver.24.0

Articles about JMAG-Designer that have been released previously are available.