MotorAnalysis-IM

Electric motor and generator design and analysis software

MotorAnalysis-IM

Overview

MotorAnalysis-IM is free software for design and analysis of induction motors and generators. MotorAnalysis-IM is based on automated finite element analysis (FEA) simulations and establishes a complete set of tools for design and analysis of induction machines. MotorAnalysis-IM is available as a MALTAB-based application or as a standalone program working without MATLAB.

Features

  • Template-based motor geometry prototyping
  • Dimensions of stator and rotor teeth, slots, bars and bar skew angle
  • Stator tooth shape can be additionally adjusted to optimize the motor performance
  • Automatic or manual stator winding layout
  • End winding parameters can be automatically calculated
  • Temperature effects on winding resistances are taken into account
  • Nonlinear B-H curves
  • Iron losses are included into analysis
  • Finite element mesh available in one click
  • Periodic/antiperiodic boundary conditions
  • Mesh density can be flexibly adjusted

Analysis Methods

 

EQUIVALENT CIRCUIT ANALYSIS

 
  • Estimation of equivalent circuit parameters based on no-load and load test simulations
  • Nonlinear behavior of magnetizing inductance is taken into account
  • Calculation of most commonly used motor parameters like voltage, current, power, torque, power factor, efficiency and losses for different operating points as well as efficiency maps
 

AC ANALYSIS

 
  • Based on nonlinear time-harmonic FEA assuming ideal sinusoidal current or voltage source supply
  • Plots of voltage, current, power, torque, power factor, efficiency and losses for different operating points
  • Air gap distribution and field plots
 

TRANSIENT ANALYSIS

 
  • Based on nonlinear time-stepping FEA
  • Rotor rotation with air gap re-meshing
  • Rotor bar skewing is taken into account with multi-slice simulations (solving several 2D slices all at the same time)
  • FEA simulations with coupled electrical circuits
  • Arbitrary supply current or voltage waveforms including PWM inverter supply
  • Time-series data plots, air gap distribution and field plots with animation option
 

ADVANCED EQUIVALENT CIRCUIT ANALYSIS

 
  • Variations of lumped parameters of the equivalent circuit at different operating points are taken into account
  • High accuracy (close to AC Analysis) and high computational speed at the same time
  • Calculation of most commonly used motor parameters like voltage, current, power, torque, power factor, efficiency and losses for different operating points as well as efficiency maps
 

SIMULINK MODELS

 
  • Creation of Simulink models of the motor based on equivalent circuit parameters calculated by MotorAnalysis
  • Variations of lumped parameters of the equivalent circuit at different operating points can be taken into account

Workflow