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Topic: DC Motor PID control
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Ahmed Hakim

Posts: 22
Registered: 1/22/09
DC Motor PID control
Posted: Feb 6, 2013 4:31 AM
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I am trying to bulid a DC motor model with PID controller

I already build the model and when I tried to design the PID controller using MATLAB 2012 PID tune I got a PID controller with 4 paramters

P I D and N
with the following formula
P (1 + I(1/s) + D (N /1+N/S))

I run the simulation with the PID (tuned by MATLAB) and it gives uper results

when I used this formula P (1 + I(1/s) + D (N /1+N/S)) and implement it by myself as a model with P I D and N gains (tuned)
I got strange results

can anybody help?

why different results?
Do MATLAB uses something else not only this formula with these paramters

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