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How to Find Kp,Ki for PI controller from Gain and Time Constant value Given

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Sreeraj A
Sreeraj A on 14 Jan 2021
Commented: Sreeraj A on 14 Jan 2021
Hello !
I have a PSIM circuit model where for the PI Controller Gain and Time constant values are mentioned. I would like to use the same values with Matlab PI controller where input is Proportional Gain and Integral Gain( Kp & Ki)
Any method to find Kp and Ki from Gain and Time constant values mentioned ?
Thanks in Advance
Sreeraj Arole

Accepted Answer

Birdman
Birdman on 14 Jan 2021
Simply, the conversion is as follows(Let K denote gain and Ti denote time constant):
K*(1+1/(Ti*s))
is equal to
Kp+Ki/s
If you equate two expressions, then
Kp=K
Ki=K/Ti

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