## 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

- 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

- 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

- 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