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TITLE PAGE
FEEDBACK OF A CONTROL SYSTEM
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "feedback of a control system" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
By
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Supervisor Head of Department.
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External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
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TABLE OF CONTENT
COVER PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
TABLE OF CONTENT
- INTRODUCTION
- BACKGROUND OF THE STUDY
- AIMS AND OBJECTIVE
- SCOPE OF THE STUDY
- METHODOLOGY
- OUTLINE OF THE STUDY
CHAPTER TWO
LITERATURE REVIEW
- CONCEPTUAL REVIEW
- WHAT IS A CONTROL SYSTEM
- FUNCTION OF A CONTROL SYSTEM
- ADVANTAGES AND DISADVANTAGES OF A CONTROL SYSTEM
- ISSUES FACING FEEDBACK IN A CONTROL SYSTEM
- SIGNAL AND SYSTEM
CHAPTER THREE
DESIGN METHODOLOGY
3.1 DESIGN AND ANALYSIS OF A CONTROL SYSTEM
3.2 FEED FORWARD AND FEED BACK CONTROL PERFORMANCE ANALYSIS
3.3 FEEDBACK CONTROL METHODOLOGIES FOR NON LINEAR SYSTEM
3.4 FEEDBACK CONTROL TECHNIQUES FOR NON LINEAR ANALYTIC SYSTEM
CHAPTER FOUR
4.0 DESIGN AND IMPLEMENTATION
4.1 NOMINAL STABILITY AND PERFORMANCE OF A FEEDBACK CONTROL SYSTEM
4.2 DIAGNOSIS OF A CURRENT SITUATION
4.3 CONCLUSION
CHAPTER ONE
- INTRODUCTION
- BACKGROUND OF THE STUDY
Control theory deals with the control of dynamical systems in engineered processes and machines. The objective is to develop a control model for controlling such systems using a control action in an optimum manner without delay or overshoot and ensuring control stability.
To do this, a controller with the requisite corrective behavior is required. This controller monitors the controlled process variable (PV), and compares it with the reference or set point (SP). The difference between actual and desired value of the process variable, called the error signal, or SP-PV error, is applied as feedback to generate a control action to bring the controlled process variable to the same value as the set point. Other aspects which are also studied are controllability and observability. This is the basis for the advanced type of automation that revolutionized manufacturing, aircraft, communications and other industries. This is feedback control, which involves taking measurements using a sensor and making calculated adjustments to keep the measured variable within a set range by means of a "final control element", such as a control valve.
Feedback Systems process signals and as such are signal processors. The processing part of a feedback system may be electrical or electronic, ranging from a very simple to a highly complex circuits.
Simple analogue feedback control circuits can be constructed using individual or discrete components, such as transistors, resistors and capacitors, etc, or by using microprocessor-based and integrated circuits (IC’s) to form more complex digital feedback systems.
As we have seen, open-loop systems are just that, open ended, and no attempt is made to compensate for changes in circuit conditions or changes in load conditions due to variations in circuit parameters, such as gain and stability, temperature, supply voltage variations and/or external disturbances. But the effects of these “open-loop” variations can be eliminated or at least considerably reduced by the introduction of Feedback.
A feedback system is one in which the output signal is sampled and then fed back to the input to form an error signal that drives the system. In the previous tutorial about Closed-loop Systems, we saw that in general, feedback is comprised of a sub-circuit that allows a fraction of the output signal from a system to modify the effective input signal in such a way as to produce a response that can differ substantially from the response produced in the absence of such feedback.
Feedback Systems are very useful and widely used in amplifier circuits, oscillators, process control systems as well as other types of electronic systems. But for feedback to be an effective tool it must be controlled as an uncontrolled system will either oscillate or fail to function.
- AIMS AND OBJECTIVE
The main aim of the study is to carry out the research on the role of feedback of a control system. The control system used is to ensure that the steady state value of the variable is equal to the reference value. The following objective shall be achieved:
1. Know the definition of the following terms: input, output, feedback, error, open loop, and closed loop.
2. Understand the principle of closed-loop control.
3. Understand how the following processes are related to the closed-loop method of control: position feedback, rate feedback, and acceleration feedback.
4. Understand the principle of damping and its effect upon system operation.
5. Be able to explain the advantages of closed-loop control.
- SCOPE OF THE STUDY
In a control system, If either the output or some part of the output is returned to the input side and utilized as part of the system input, then it is known as feedback. Feedback plays an important role in order to improve the performance of the control systems. In this work, we are writing on the role of feedback in a control system
- METHODOLOGY
In the course of carrying this study, numerous sources were used which most of them are by visiting libraries, consulting journal and news papers and online research which Google was the major source that was used.
- OUTLINE OF THE STUDY
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "feedback of a control system" is also available. Order full work to download. Chapter two of "feedback of a control system" consists of the literature review. In this chapter all the related work on "feedback of a control system" was reviewed.
CHAPTER THREE: The complete chapter three of "feedback of a control system" is available. Order full work to download. Chapter three of "feedback of a control system" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of "feedback of a control system" is available. Order full work to download. Chapter four of "feedback of a control system" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a "feedback of a control system" is available. Order full work to download. Chapter five of "feedback of a control system" consist of conclusion, recommendation and references.
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