Use ultimate sensitivity tuning to tune the controller gains.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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Use ultimate sensitivity tuning to tune the controller gains.
**Part 8: PID Controller**

(a) Use ultimate sensitivity tuning to tune the controller gains.

\[ G_c = K_p \left(1 + T_D s + \frac{1}{T_I s}\right) \]

For PID: \( K_p = 0.6K_u \)

\[ T_I = \frac{P_u}{2} \quad T_D = \frac{P_u}{8} \]

**Block Diagram:**

1. Input: \( R(s) \)
2. Summation point (subtracts feedback)
3. Controller \( G_c \)
4. Transfer function block: \(\frac{100}{s^3 + 10s^2 + 61s + 1300} \)
5. Output: \( Y(s) \)

**Parameters:**
- \( K_u = \)
- \( K_D = \)
- \( T_d = \)
- \( P_u = \)
- \( T_i = \)

**Explanation of Diagram:**
The diagram consists of a control loop with a summation point that subtracts feedback \( Y(s) \) from the input \( R(s) \), fed into the controller \( G_c \). The resultant signal is processed through a transfer function represented by a block with the specified equation, and the output is denoted as \( Y(s) \).

The equations and parameters provided are typically used to tune the PID controller parameters based on ultimate sensitivity method, where \( K_p \), \( T_I \), and \( T_D \) define the proportional, integral, and derivative gains.
Transcribed Image Text:**Part 8: PID Controller** (a) Use ultimate sensitivity tuning to tune the controller gains. \[ G_c = K_p \left(1 + T_D s + \frac{1}{T_I s}\right) \] For PID: \( K_p = 0.6K_u \) \[ T_I = \frac{P_u}{2} \quad T_D = \frac{P_u}{8} \] **Block Diagram:** 1. Input: \( R(s) \) 2. Summation point (subtracts feedback) 3. Controller \( G_c \) 4. Transfer function block: \(\frac{100}{s^3 + 10s^2 + 61s + 1300} \) 5. Output: \( Y(s) \) **Parameters:** - \( K_u = \) - \( K_D = \) - \( T_d = \) - \( P_u = \) - \( T_i = \) **Explanation of Diagram:** The diagram consists of a control loop with a summation point that subtracts feedback \( Y(s) \) from the input \( R(s) \), fed into the controller \( G_c \). The resultant signal is processed through a transfer function represented by a block with the specified equation, and the output is denoted as \( Y(s) \). The equations and parameters provided are typically used to tune the PID controller parameters based on ultimate sensitivity method, where \( K_p \), \( T_I \), and \( T_D \) define the proportional, integral, and derivative gains.
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