electric motor design

Inspiring NextElectromechanical Systems Users

Conference

Electric Motor Design

September 26 – 28, 2001

Electric Motor Design Tools

RMxprt- Parametrics- Optimization- Export .SML- EMpulse Project

SIMPLORER- Power Electronics- State Machines- Block Diagrams

EMpulse- Fields/Circuits/Motion- Power Electronics- Core Loss- Post Processing Wizard

RMxprt Parametrics

Single Phase Induction Motor

New Setup Panel

RMxprt Parametrics

C_run: Nominal 6 uF: Sweep 1 to 12uF in 12 StepsSlot_depth: Nominal 8.2mm: Sweep 6 to 10 mm in 9 Steps

RunRMxprt

RMxprt Parametrics

RMxprt Optimization

Three Phase Synchronous Generator

Select Optimization

RMxprt Optimization

RunRMxprt

RMxprt Optimization

RMxprt Optimization

Optimum Solution

RunRMxprt

RMxprt OptimizationOriginal

Optimized

Objective: sinusoidalair-gap flux density

distribution

RMxprt SIMPLORER

DQ0 model written directly by RMxprt

Transient Parameters

EMpulse with Schematic

Brushless DC Motor• Four Pole• Three Phase• Chopped Current Control

Switching Sequence of Phase A vs. Mechanical Degrees

Phase A winding

Switching circuit based on angular position

Current Controlled SwitchesSchematic

Position Dependent Sources

Current Controlled Switches

RunEMpulse

Core Loss

Steel:Loss density = Kh f2B2

max + Kc f B2max + Ke (f Bmax)

3/2

Loss will be a function of Lamination Thickness

Power Ferrite: Loss density= Cm fx Bmaxy

May be expressed in Watts/m3 or Watts/Kg

Core Loss

Select Object to for which Core Loss is to be Calculated

RunEMpulse

Core Loss

EMpulse Post Processing Wizards

Post Processing Wizards

Record and Play Macro

Post Processing Wizards

RunEMpulse