Chapter 9
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Chapter 9 PID Controller Tuning PowerPoint PPT Presentation


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Chapter 9 PID Controller Tuning. ※ Control performance by three goals Controlled-variable performance ― Minimize the IAE of controlled variable Model error ―Robustness Manipulated-variable behavior―Excessive variation. * Typical feedback control loop. Where the combination.

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Chapter 9 PID Controller Tuning

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Chapter 9 PID Controller Tuning

  • ※ Control performance by three goals

  • Controlled-variable performance ― Minimize the IAE of controlled variable

  • Model error―Robustness

  • Manipulated-variable behavior―Excessive variation


* Typical feedback control loop


Where the combination


* Base value of process


* IAE vs. controller gain (P)


* IAE vs. PI control


* IAE vs. PID control


* Tuning correlations

◎ Time fraction

e.g.


  • * Ciancone correlations (pp.280)

  • PID tuning constants

  • PI tuning constants


(1) PID tuning constants


(2) PI tuning constants


Ex. 9.1


S1. Model building

S2. Tuning constants by using Ciancone


S3. Responses


  • * Ciancone correlations vs. Lopez correlations

  • Disturbance rejection


2. Robustness


  • * Other tuning procedures


Table 9.1

Table 9.2


Ex. 9.2


P1. Based on Z-N tuning method

P2. Based on T-L tuning method


  • Tuning rules for FOPDT model


Homework #2:

Q8.15

Q9.4

Q9.14*


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