PID Tuning

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KNOWLEDGE MANAGEMENT PID Tuning BY JESSADA J.

<ul><li>Process Characteristics </li></ul><ul><li>Controller Behaviors </li></ul><ul><li>PID Tuning ( Ziegler Nichols tun...

<ul><li>Self Regulating Process </li></ul>Process Characteristics <ul><li>Integrating Process </li></ul>Process variable t...

<ul><li>P Controller ( Proportional, Controller Gain ) </li></ul>Controller Behaviors P controller will increase the signa...

<ul><li>I Controller ( Integrating, Reset Time ) </li></ul>Controller Behaviors I controller will increase the signal res...

<ul><li>D Controller ( Derivative, Rate Time ) </li></ul>Controller Behaviors D controller will increase the signal respo...

<ul><li>Before Tuning </li></ul><ul><li>Understood in the control philosophy </li></ul><ul><li>Understood in hardware and ...

- Consider process characteristic PID Tuning Change process set-point or MV value of the controller and monitor process va...

- Select control method PID Tuning Consider Dead time and Process time constant ratio ( L E /T E ), the table below use f...

- Select tuning method ( Ziegler Nichols tuning method ) PID Tuning Consider process conditions and select properly tunin...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning - In controller manual mode, Change the MV value and Find...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning T1 > T2 ; Process Time Constant ( T E ) = T2 Process Tim...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning T1 < T2 ; Process Time Constant ( T E ) = T1 Process Tim...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning Process Dead Time ( L E ) Process Dead Time( Self Regula...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning Equivalent Process Gain Process Gain( Integrating Process...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning Process Time Constant ( T E ) = 1.5( T1-T2 ) Process Dea...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning Process Time Constant ( T E ) = 1.4( T1-T2 ) Process Dea...

- Open-Loop method ( Ziegler Nichols tuning method ) PID Tuning Roughly Tuning by initial value as table below. Where: ...

- Closed-Loop method ( Ziegler Nichols tuning method ) PID Tuning - In controller automatic mode ( operating condition ),...

- Closed-Loop method ( Ziegler Nichols tuning method ) PID Tuning - In case cannot find out the point of PV oscillation, ...

- Closed-Loop method ( Ziegler Nichols tuning method ) PID Tuning Roughly Tuning by initial value as table below. Where...

- Trial & Error method ( Ziegler Nichols tuning method ) PID Tuning - In controller automatic mode ( operating condition ...

- Trial & Error method ( Ziegler Nichols tuning method ) PID Tuning - Adjust initial value of the controller as following...

- Trial & Error method ( Ziegler Nichols tuning method ) PID Tuning - Adjust initial derivative value of the controller b...

<ul><li>P Controller mitigates error but initiates offset. </li></ul><ul><li>I Controller mitigates offset but initiates o...

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