Predicting motor performance
Posted by
Greg Jackson
on 2002-10-25 17:10:05 UTC
I have lots of motor spec sheets without speed / torque curves. In most
cases there are several versions of the same static torque design, where
they trade off current for inductance. I realize that higher inductance is
going to cut into the speed / torque curve at the high end, but I don't know
how much. Does anybody have any equations or predictions for this?
Would a straight linear model work? What I'm thinking of is looking at what
the RMS current of a square wave at the bus voltage would provide with the
resistance and inductance of the motor in the given time for a single pulse.
Is that an accurate model? Are there any simulation programs I can run
which take motor and voltage parameters as inputs?
Any help would be appreciated on this.
G. Jackson
cases there are several versions of the same static torque design, where
they trade off current for inductance. I realize that higher inductance is
going to cut into the speed / torque curve at the high end, but I don't know
how much. Does anybody have any equations or predictions for this?
Would a straight linear model work? What I'm thinking of is looking at what
the RMS current of a square wave at the bus voltage would provide with the
resistance and inductance of the motor in the given time for a single pulse.
Is that an accurate model? Are there any simulation programs I can run
which take motor and voltage parameters as inputs?
Any help would be appreciated on this.
G. Jackson