Consider the following feedback system X(s) E(s) Y(s) Σ G(0) H(s) 1 where G(s)=- H(s)=s+2. (s+1)(s+k)* (a) Determine the transform function H,(s)=SI X(s) (b) Discuss the BIBO stability of the system in terms of the values of k.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
icon
Related questions
Question
### Feedback Control System Analysis

#### System Diagram Overview
The image illustrates a feedback control system with the following components:

- **Input**: \( X(s) \)
- **Feedback Path**: Includes a summing junction, which subtracts feedback \( Y(s) \) from input \( X(s) \).
- **Controller/Subsystem**: \( G(s) \)
- **Feedback Element**: \( H(s) \)
- **Output**: \( Y(s) \)

#### System Equations
- **Transfer Function G(s)**: 
  \[
  G(s) = \frac{1}{(s+1)(s+k)}
  \]

- **Feedback Transfer Function H(s)**: 
  \[
  H(s) = s + 2
  \]

### Problem Statements

1. **Determine the Transform Function \( H_1(s) = \frac{Y(s)}{X(s)} \)**
   - This involves calculating the overall transfer function of the feedback system.

2. **Discuss the BIBO Stability of the System**
   - Analyze the stability of the system based on the values of \( k \).

### Steps to Solve

#### (a) Determining the Transform Function \( H_1(s) \)

To find \( H_1(s) \), use the formula for the closed-loop transfer function of a feedback system:

\[
H_1(s) = \frac{G(s)}{1 + G(s)H(s)}
\]

Substitute the given \( G(s) \) and \( H(s) \) into the equation and simplify.

#### (b) BIBO Stability Analysis

For Bounded Input, Bounded Output (BIBO) stability, assess the poles of the closed-loop transfer function:

- Identify the poles of \( H_1(s) \) to determine stability.
- The system is stable if all poles have negative real parts.

Discuss how \( k \) affects the pole locations and thus the stability.

### Discussion
This analysis provides insights into ensuring system stability, which is critical in control systems design. Understanding feedback loops and their influence on system behavior enables better system performance and reliability.
Transcribed Image Text:### Feedback Control System Analysis #### System Diagram Overview The image illustrates a feedback control system with the following components: - **Input**: \( X(s) \) - **Feedback Path**: Includes a summing junction, which subtracts feedback \( Y(s) \) from input \( X(s) \). - **Controller/Subsystem**: \( G(s) \) - **Feedback Element**: \( H(s) \) - **Output**: \( Y(s) \) #### System Equations - **Transfer Function G(s)**: \[ G(s) = \frac{1}{(s+1)(s+k)} \] - **Feedback Transfer Function H(s)**: \[ H(s) = s + 2 \] ### Problem Statements 1. **Determine the Transform Function \( H_1(s) = \frac{Y(s)}{X(s)} \)** - This involves calculating the overall transfer function of the feedback system. 2. **Discuss the BIBO Stability of the System** - Analyze the stability of the system based on the values of \( k \). ### Steps to Solve #### (a) Determining the Transform Function \( H_1(s) \) To find \( H_1(s) \), use the formula for the closed-loop transfer function of a feedback system: \[ H_1(s) = \frac{G(s)}{1 + G(s)H(s)} \] Substitute the given \( G(s) \) and \( H(s) \) into the equation and simplify. #### (b) BIBO Stability Analysis For Bounded Input, Bounded Output (BIBO) stability, assess the poles of the closed-loop transfer function: - Identify the poles of \( H_1(s) \) to determine stability. - The system is stable if all poles have negative real parts. Discuss how \( k \) affects the pole locations and thus the stability. ### Discussion This analysis provides insights into ensuring system stability, which is critical in control systems design. Understanding feedback loops and their influence on system behavior enables better system performance and reliability.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Mathematical Modeling of Mechanical System
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,