|Jul5-12, 04:06 AM||#1|
Modelling/Simulation of a Linear BLDC motor
I'm trying to implement a complete model of ha Faulhaber Linear BLDC motor with the purpose of derriving a controller suitable for a microcontroller ouputing a PWM voltage. The motor is supposed to move a given load to follow a reference signal.
Accordingly to http://www.physicsforums.com/showthread.php?t=591062 it might be okay to model the motor as a common brushed DC motor
Do you have any tips? I have tryed to follow the master thesis by Stefan Baldursson (http://webfiles.portal.chalmers.se/e...nStefanMSc.pdf) with out success. (This motor is however not a linear BLDC)
Could it be suitable to use a system identification method instead of modelling as proposed in that thesis? the identificatin method would mean that I meassure input vs output of the motor (should it be with or without load?)
Or is the "brushed DC motor"-solution mentioned above a suitable approach?
|Jul6-12, 12:06 PM||#2|
to clarify, you have a motor moving a load following a reference signal...
1) mechanical system: how is the motor connected to load? how does it move through space? what is its mass?
2) motor system: (the equ's from the papers) how does voltage and current affect the motor in terms of speed and/ or torque?
3) control system: what does the voltage reference signal represent? Speed, torque, or position? What voltage or current will you apply in a certain sequence to mimic some movement.
|bldc, matlab, simulink|
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