JMAG-Express is a tool to support motor design. All template-based, it includes everything from concept design with JMAG-Express Quick Mode to basic design and detailed design with JMAG-Express Power Mode. It can export motor models (JMAG-RT models) at any stage, allowing SILS and HILS to be done.
Freely define geometry templates
- Templates for PMSMs, induction motors, brush motors, and universal motors have all been prepared.
- You can add geometries created in JMAG-Designer as templates.
- JMAG-Express Power mode can evaluate the motor characteristics of PMSMs and induction motors. Use JMAG-Designer for brush motors and universal motors.
- You can search for model data by design parameters, output, and design date from a wealth of design proposals.
E.g. Searching for model data where the slot combination is 4 poles and 24 slots
– Search model data where the average torque is over 3 Nm
– Search model data that was calculated on May 25, 2012
- JMAG-Express Power mode will recommend a geometry and drive conditions if you simply enter the minimum output expected of the motor.
- Of course, you can also narrow down the geometry and drive conditions by entering more information.
An extensive material database
- JMAG-Express Power mode has approximately 730 types of characteristics data built-in, just like JMAG-Designer.
- Precise material designs are completed by selecting the material name.
- Geometry, materials, windings, and drive conditions can be entered as parameters, which enables characteristics evaluations.
- Multiple designs can be easily compared.
Running the analysis remotely
- You can use an external calculation server.
E.g. When there are a lot of analysis cases
Saving and reading setting parameter files
- You can save setting parameter files separately from geometry data.
- This should come in handy during system automations like linking with opimization softwares.
JMAG Function Videos
JMAG-Express Quick mode
JMAG-Express allows calculation of basic motor properties in one second.
Just by entering the geometry template, materials, winding, and drive conditions as parameters, you can obtain the induced voltage constant, torque constant, inductance properties, current vs. torque properties, revolution speed vs. torque properties, iron loss/copper loss properties, etc. in a split second. When the desired power (W) is specified, the size and comparative loading needed to achieve it are calculated automatically.
Quick Mode results screen
- Just enter the geometry template, materials, winding, and drive conditions as parameters.
- Revolution speed vs. torque properties, iron loss/copper loss properties, etc. are instantaneously displayed in a graph.
- Motor properties can be viewed in a machine constant table.
Machine Constant Table
JMAG-Express Power mode
JMAG-Express Power mode is a design tool that allows you to perform motor design and evaluation by simply inputting parameters, like geometry, winding, and rotation speed, that follow a template.
It utilizes the finite element method’s highly accurate analysis ability to evaluate eddy current losses in magnets and iron losses from local magnetic saturation or harmonic currents.
JMAG-Express Power mode also supports more detailed design studies by seamlessly using models and results from JMAG-Designer, the electromagnetic field analysis software.
- Simply input the design parameters for geometry, materials, winding, and drive conditions.
- No prior analysis knowledge is necessary.
- It automatically carries out the process from analysis model creation to results output.
- Magnetic flux density distribution or iron loss density distribution
- Joule loss frequency analysis
- Magnet eddy current loss distribution
- Efficiency maps
- Start up JMAG-Designer by clicking the calculation result screen.
- Generate an RT model while maintaining the design parameters.
A comparison of JMAG-Express Quick mode and JMAG-Express Power mode
Externally excited synchronous machine
|Wound-field AC synchronous machine||
Iron loss analysis considering PWM carrier harmonics
Magnet eddy current loss analysis that accounts for PWM
Segregation analysis of torque components
Equivalent Circuit Parameters
Line Start Analysis