ProductsMotor Design ToolJMAGExpress

JMAGExpress is a tool to support motor design. All templatebased, it includes everything from concept design with JMAGExpress Quick Mode to basic design and detailed design with JMAGExpress Power Mode. It can export motor models (JMAGRT models) at any stage, allowing SILS and HILS to be done.
Analysis using JMAGExpress

Functions
Freely define geometry templates
 Templates for PMSMs, induction motors, brush motors, and universal motors have all been prepared.
 You can add geometries created in JMAGDesigner as templates.
 JMAGExpress Power mode can evaluate the motor characteristics of PMSMs and induction motors. Use JMAGDesigner for brush motors and universal motors.

Builtin database
 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

Geometry sizing
 JMAGExpress 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
 JMAGExpress Power mode has approximately 730 types of characteristics data builtin, just like JMAGDesigner.
 Precise material designs are completed by selecting the material name.

Parametric Analysis
 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
Power Mode Load Analysis of an IPM Motor 
Adding Parameters to a Geometry Template 
Calculating a JMAGExpress Design Proposal in JMAGDesigner 

JMAGExpress Quick mode
JMAGExpress 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.
JMAGExpress screen 
Quick Mode results screen 
Features
Evaluate basic motor properties by simply entering parameters
 Just enter the geometry template, materials, winding, and drive conditions as parameters.
JMAGExpress screen 
Geometry Modeling 
Material Designs 
Coil Settings 
Drive Conditions 

Evaluate torque, efficiency, loss, and inductance properties with a graph or numerically
 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.
Properties Graph 
Machine Constant Table 

JMAGExpress Power mode
JMAGExpress 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. JMAGExpress Power mode also supports more detailed design studies by seamlessly using models and results from JMAGDesigner, the electromagnetic field analysis software.
Features
JMAGExpress Power mode delivers highly accurate results with simple settings
 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.

It evaluates efficiency maps and losses from magnetic saturation and harmonic current, which are essential to a motor's performance analysis.
 Magnetic flux density distribution or iron loss density distribution
 Joule loss frequency analysis
 Magnet eddy current loss distribution
 Efficiency maps

Getting a more detailed study by seamlessly connecting with JMAGDesigner or a control circuit simulator
 Start up JMAGDesigner by clicking the calculation result screen.
 Generate an RT model while maintaining the design parameters.

A comparison of JMAGExpress Quick mode and JMAGExpress Power mode
Mode 
Target motor 
Output 
Quick mode 
PMSM IM SRM Brush motor Externally excited synchronous machine 
Simple calculation
 SpeedTorque curve
 Torque/efficiency
 Copper loss/iron loss
 Inductance
 Voltage
 Magnetomotive force distribution

Woundfield AC synchronous machine 
Simple calculation
 Noload saturation curve (OCC) / three phase short circuit curve (SCC) / gap line (AGL) / zeropowerfactor full load saturation curve (ZPF)
 phasor diagram

Power mode 
PMSM 
Basic characteristics
 Noload
 Cogging torque waveform
 Induced voltage waveform
 Magnetic flux density distribution
 Loss values in the stator core
 Iron loss density distribution in the stator core
 Loading
 Torque waveform
 Voltage waveform
 Magnetic flux density distribution
 Loss values in the stator core
 Iron loss density distribution in the stator core
 Inductance
 beta characteristics for Ld/Lq
 beta characteristics for the reluctance torque, magnet torque, and total torque
 Efficiency maps
 SpeedTorque curve, Efficiency maps
Iron loss analysis considering PWM carrier harmonics
 Rotor core and stator core losses (hysteresis loss, joule loss, iron loss)
 Joule loss frequency characteristics
 Loss density distribution (iron loss, hysteresis loss, joule loss)
Magnet eddy current loss analysis that accounts for PWM
 Eddy current loss variations from the number of magnet divisions
 Eddy current loss density distribution contour plots, Eddy current loss density vector plots
Segregation analysis of torque components
 Magnetic flux density distribution and magnetic flux lines for the magnetomotive force in the current and magnet
 beta characteristics for the reluctance torque, magnet torque, and total torque

IM 
Equivalent Circuit Parameters
 Magnetic flux density distribution (During constraint, During noload)
 Current Density Distribution (During constraint)
 Secondary Resistance (During constraint)
 Leakage Inductance (During constraint)
 Excitation inductance (During noload)
Drive Characteristics
 Primary current/voltage
 Primary copper loss
 Secondary copper loss
 Iron loss
 Torque
 Efficiency
 Eddy current loss density distribution in the cage
 Loss density distribution in the rotor and stator cores(hysteresis loss, joule loss, iron loss)
Torque Characteristics
 TorqueCurrent curve
 CurrentVoltage curve
 Eddy current loss density distribution in the cage
 Loss density distribution in the rotor and stator cores(hysteresis loss, joule loss, iron loss)
Line Start Analysis
 Rotation speed waveform during startup
 Torque waveform during startup
 Stator coil current waveform during startup

SRM 
IPsi characteristics
 IPsi curve
 Magnetic flux density distribution
Static characteristics
 Flux linkage
 Flux linkage waveform
 Inductance
 Inductance waveform
 Torque
 Torque waveform
Drive characteristics
 Torque waveform
 Current waveform
 Copper loss waveform
 Switching characteristics
Drive characteristics
 Rotation speed versus torque
 Rotation speed versus current
 Rotation speed versus iron loss
 Rotation speed versus efficiency



Reference
