Stepper & BLDC simulation

Hi!
1-How to calculate the pull-out torque curve of a stepper motor starting from the resistance,inductance,holding torque,bus voltage in chopper and voltage drive mode?

2-How to simulate a BLDC motor starting from the line to line parameters (bemf [Vrms/krpm],inductance,resistance),
poles number,star or delta connection,to use for evaluate short moves?

Thanks.

 

[jbartos]

Suggestions:
1. Visit

http://users.utu.fi/kaansa/stepper1.html

http://www.tla.co.nz/lit_step.html

http://www.linengineering.com/

http://www.velleman.be/kits/k8005.htm

http://www.motiongroup.com/control.htm

http://steppercontrol.com/

http://www.elect.spiricon.com/

etc. for more info on steppers
2. Visit

http://www.ansoft.co.kr/products/EMapplication.html

http://www.ecnmag.com/ecnmag/issues...OMECHANICAL_MECHANICAL_DEVICES/ec14em511_.asp

http://www.fairchildsemi.com/pf/ML/ML4425.html

http://www.slmti.com/controllers/

http://www.simec.com/english/bldc.htm

http://www.samsungelectronics.com/motors_compressors/product_motor/division/division_index.html

http://www.planetee.com/planetee/servlet/DisplayDocument?ArticleID=4064

etc. for more info on brushless dc motors

 

[lakshmi]

We require 3 ph Brushless DC motor of 20,000 rpm,20w,around 35mm size,with sensors.

Please send the availability details as early as possible.

Please send the reply to prabhal@dalmiacement.com