Design and Implementation of Magnetic levitation Train System

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Design and Implementation of Magnetic levitation Train System 

CHAPTER ONE INTRODUCTION

    Background to the study

Overcoming the grip of the earth’s gravity has been a major challenge for years. However, the work of scientists and engineers who have found many ways to levitate a variety of objects is being applied in the field of transportation in several countries.

A long with the increase of population and expansion in living zones, automobiles and air services cannot afford mass transit anyone. Accordingly, demands for innovative means of public transportation have increased. In order to appropriately serve the public, such a new-generation transportation system must meet certain requirements.

Maglev (derived from magnetic levitation) uses magnetic levitation to propel vehicles. With maglev, a vehicle is levitated a short distance away from a “guide way” using magnets to create both lift and thrust. High-speed maglev trains promise dramatic improvement for human travel.

The Magnetic Levitation (Maglev) train is one of the best candidates to satisfy: rapidity, reliability and safety. While conventional train drives forward by using friction between wheels and rails, the maglev train replaces wheels by electromagnets and levitates on the guide way, producing propulsion force electromechanically, without any contacts.

The Maglev train looks to be very promising solution for the near future, many researchers have developed technologies such as modeling and analysis of linear electric machinery superconductivity, permanent magnets.

Problem Statement

 

The Wheel-on-rail systems suffers from numerous problems mostly is caused by the friction because of the weight that the train applies to the rail which cause loss in energy. The wheel-on-rail systems can’t reach high speeds. The wheel-on-rail systems are environmentally unfriendly; it can be represented as the conventional train.

Conventional train drives forward by using friction between wheels and rails. This friction causes many problems such as noise, vibration, reduces acceleration and needs periodical maintenance.

The maglev train replaces wheels by electromagnets and levitates on the guide way, producing propulsion force electromechanically without any contact.

   Objectives

The main objective of this study is to:

  • Design a magnetic levitating system
  • Build a maglev train model

   Methodology

  • To study the mechanism of the magnetic fields and the relationship between the levitation/movement and the
  • Build a levitating moving ‘maglev’ train model
  • Designing and modeling a levitation system

   Project lay-out

The project consists of five chapters: Chapter One presents an introduction to the principles of the project, project motivation and objectives. Chapter Two consists of theoretical background of automatic control, magnetic levitation, magnetic levitation train, microcontroller system, PID controller, nonlinear systems, linearization of nonlinear systems, transistor and freewheeling diode. Chapter Three concerns with system description, system hardware and software and modeling. Chapter Four presents the simulation and result , the system fabrication , the system control circuit implementation, the prototype design and the testing. Finally, Chapter Five presents a conclusion and recommendations for future works.

TABLE OF CONTENTS

 

  Page

No.

 

 

I
DEDICATION Ii
ACKNOWLEDGEMENT iii
ABSTRACT Iv
المستخلص V
TABLE OF CONTENTS vi
LIST OF FIGURES Ix
LIST OF ABBREVIATIONS xi
LIST OF SYMBOLS xii
CHAPTER ONE

INTRODUCTION

 
1.1 General concepts 1
1.2 Problem Statement 2
1.3 Objectives 2
1.4 Methodology 2
1.5 project layout 3
CHAPTER TWO

THEORETICAL REVIEW

 

BACKGROUND

 

and

 

LITERATURE

 
2.1 control system 4
2.2 Magnetic Levitation 10
2.3 Magnetic Levitation Train 11
2.4 Motors 15

 

2.5 Sensors 15
2.6 Microcontroller 15
2.7 Proportional Integral Derivative controller 18
2.8 Nonlinear System 19
2.9 Linearization of Nonlinear Systems 19
2.10 Transistor 20
2.11 Freewheeling diode 20
CHAPTER THREE

MODELING AND DESIGNING

 
3.1 System Description 23
3.2 System Hardware 23
3.3 System Software 32
3.4 Modeling 33
CHAPTER FOUR

SIMULATION AND RESULTS

 
4.1 Simulation and result 37
4.2 Design of PD controller 38
4.3 System fabrication 40
4.4 Rail and trailer 40
4.5 Magnetic levitation 42
CHAPTER FIVE

CONCLUSION AND RECOMMENDATIONS

 
5.1 Conclusion 46
5.2 Recommendations 46
REFERENCES 47

 

APPENDIX A 48
APPENDIX B 50

 

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