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DC motor parameters

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dmta

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Hi everyone !!!!!!!

I am working on a DC motor control project in which I need certain motor parameters such as torque constant, inertia, resistance, inductance etc (all constants needed to model and write DC motor equations).

Can you please help me !!!!!!!!!

Regards
 
I would suggest you contact the motor manufacturer.
 
Hi crutschow, thanks for the reply !!!!!!!

I'm afraid the motor does not have a part number or a manufacturer name.
 
Hi crutschow, thanks for the reply !!!!!!!

I'm afraid the motor does not have a part number or a manufacturer name.

Then there is no other option than trying to measure the parameters yourself. Resistance and inductance is fairly easy to measure (stall the motor and measure with multimeter/oscilloscope). K parameter is the second easiest to measure (or estimate), because it is directly proportional to the motor speed at unit voltage (steady state gain of the transfer function).

I would suggest (if you really need the parameters) that you try to measure the step response of the motor and figure out the transfer function. It should be a second order transfer function (attached).

**broken link removed**

Tutorial:
https://www.facstaff.bucknell.edu/mastascu/econtrolhtml/Ident/Ident1.html
 

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