I would like to find Transfer Function of DC motor 24v 5500rpm but I don't know how because in class ,teach only find it from circuit picture and I can't find datasheet of its too.
Thank you
Hi,
Do you have the actual motor?
Can you power it and make measurements?
Start here.
rattigan191:
I would like to find Transfer Function of DC motor 24v 5500rpm but I don't know how because in class ,teach only find it from circuit picture and I can't find datasheet of its too.
Thank you
What do you mean by transfer function for a motor?
terryking228:
Hi,Do you have the actual motor?
Can you power it and make measurements?
has a dive motor H-bridge SE-HB-100 80A.
measure wut and how?
MarkT:
What do you mean by transfer function for a motor?
i want to design PID controller for this DC motor.
rattigan191:
i want to design PID controller for this DC motor.
To close a control loop you will need an encoder (for position/speed), or tachometer (for
speed only). The motor is pretty much irrelevant as tuning the PID will be necessary and
in practice trial and error will be needed, although calculating a reasonable guess for
the PID settings can be done, its not needed, and you will benefit from further tuning.
What sort of motor drive system you use will matter - in particular fast decay/slow decay/
mixed decay/synchonous rectification modes are all different, and most of them are not
linear.
For a quick and dirty model you can use the transfer function A/(tau*s+1) where A is the DC gain (rad/sec/volt) and tau is the time constant of the motor. The picture shows this simple model plotted against a measurement.
