Sensor less control of induction machines, in railway applications | Blazingprojects Postgraduate Thesis
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Sensor less control of induction machines, in railway applications

 

Table Of Contents


Chapter ONE

INTRODUCTION

  • 1.1Introduction
  • 1.2Background of Study
  • 1.3Problem Statement
  • 1.4Objective of Study
  • 1.5Limitation of Study
  • 1.6Scope of Study
  • 1.7Significance of Study
  • 1.8Structure of the Research
  • 1.9Definition of Terms

Chapter TWO

LITERATURE REVIEW

  • 2.1Overview of Sensorless Control
  • 2.2Historical Development of Sensorless Control in Railway Applications
  • 2.3Principles of Induction Machines
  • 2.4Sensorless Control Techniques
  • 2.5Challenges in Sensorless Control of Induction Machines
  • 2.6Applications of Sensorless Control in Railways
  • 2.7Comparative Analysis of Sensorless Control Methods
  • 2.8Sensorless Control vs. Sensor-based Control
  • 2.9Future Trends in Sensorless Control
  • 2.10Case Studies on Sensorless Control in Railway Applications

Chapter THREE

RESEARCH METHODOLOGY

  • 3.1Research Methodology Overview
  • 3.2Research Design
  • 3.3Data Collection Methods
  • 3.4Sampling Techniques
  • 3.5Data Analysis Procedures
  • 3.6Validity and Reliability
  • 3.7Ethical Considerations
  • 3.8Limitations of the Research Methodology

Chapter FOUR

DATA PRESENTATION AND ANALYSIS

  • 4.1Data Analysis and Interpretation
  • 4.2Comparison of Results with Literature Review
  • 4.3Discussion on Sensorless Control Performance
  • 4.4Evaluation of Sensorless Control in Railway Applications
  • 4.5Impact of Sensorless Control on Efficiency
  • 4.6Challenges Faced during Data Analysis
  • 4.7Recommendations for Improvement
  • 4.8Implications of Findings

Chapter FIVE

SUMMARY, CONCLUSION AND RECOMMENDATIONS

  • 5.1Summary of Findings
  • 5.2Conclusion
  • 5.3Contribution to Knowledge
  • 5.4Practical Implications
  • 5.5Recommendations for Future Research

Thesis Abstract

a sensor-less system has been developed for an induction machine in railway applications. The approach which was taken in this project thesis is a consequence of the expectations of the company investigate the possibilities of having the current generation of Alstom’s drive system working without use of a speed sensor. Some tests have thus been performed in order to validate parts of this statement.

However, because of the substantial time that would require an exhaustive investigation and a complete development, from simulation to tests on a real train, it has been decided to focus more on selecting a method relevant for Alstom’s specications, and simulate it in order to identify issues.

Thus, from an extensive literature search based on books and articles considered as references, several methods has been investigated and one have been selected for simulation. Two set-ups were used for simulations; one developed in MATLAB and the other one using real-time simulators used by Alstom to test and validate its hardware and control software.

From these tests, it was showed that for an accurate control, it is necessary to estimate, jointly with the speed, main motor parameters. But these motor parameters can hardly be all estimated at the same time and a strategy in order to estimate efficiently these other parameters is proposed. Issues related to a practical implementation are also investigated and some conclusions are drawn for an implementation of a sensor-less system in an Alstom train.


Thesis Overview

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