| ABSTRACT | 第5-6页 |
| 摘要 | 第7-8页 |
| TABLE OF CONTENTS | 第8-11页 |
| CHAPTER 1 INTRODUCTION | 第11-16页 |
| 1.1 Background | 第11-12页 |
| 1.2 Objective | 第12-13页 |
| 1.3 Current situation worldwide | 第13-15页 |
| 1.4 Main contents of research | 第15-16页 |
| CHAPTER 2 DYNAMIC LOADING OF HIGH VOLTAGE OVERHEAD TRANSMISSION LINES | 第16-28页 |
| 2.1 Mathematical models of overhea d transmission line conductors | 第16-20页 |
| 2.1.1 Sag of overhead transmission line conductors | 第16-19页 |
| 2.1.2 The heat balance equation for overhead conductors | 第19-20页 |
| 2.2 Dynamic loading effect on sag and tension of conductors | 第20-22页 |
| 2.2.1 Effect on sag | 第20-21页 |
| 2.2.2 Effect on tension | 第21-22页 |
| 2.3 Insulation issues due to sag and tension | 第22-26页 |
| 2.3.1 Hardware issues | 第22-24页 |
| 2.3.2 Safety issues | 第24-26页 |
| 2.4 Chapter summary | 第26-28页 |
| CHAPTER 3 MODELING OF MECHANICAL LOADS ASSOCIATED WITH DYNAMIC LOADING OF LINES | 第28-37页 |
| 3.1 Modeling of mechanical loads | 第28-31页 |
| 3.1.1 Statistical analysis of mechanical loads | 第28页 |
| 3.1.2 Numerical algorithm for associated mechanical loads | 第28-29页 |
| 3.1.3 Creep assessment procedure | 第29-31页 |
| 3.2 Stress-strain evaluation of a transmission line | 第31-34页 |
| 3.2.1 Stress-strain behavior | 第31页 |
| 3.2.2 Sag at high temperature | 第31-33页 |
| 3.2.3 Ampacity of the conductor | 第33页 |
| 3.2.4 Stress/sag MATLAB code | 第33-34页 |
| 3.3 High temperature, low sag transmission technologies | 第34-36页 |
| 3.3.1 Conventional conductors | 第35页 |
| 3.3.2 Unconventional conductors | 第35-36页 |
| 3.3.3 Comparison of high temperature conductors | 第36页 |
| 3.4 Chapter summary | 第36-37页 |
| CHAPTER 4 ELECTROMAGNETIC FIELD DISTRIBUTION DURING DYNAMIC LOADING | 第37-46页 |
| 4.1 Electric field distribution in transmission line corridor | 第37-42页 |
| 4.1.1 Conductor surface voltage gradient | 第37-41页 |
| 4.1.2 Lateral profile of ground electric field distribution | 第41页 |
| 4.1.3 Longitudinal profile of ground electric field distribution | 第41-42页 |
| 4.2 Magnetic field distribution in transmission line corridor | 第42-43页 |
| 4.2.1 Lateral profile of magnetic field distribution | 第42页 |
| 4.2.2 Longitudinal profile of ground magnetic field distribution | 第42-43页 |
| 4.3 Electromagnetic field modeling results for different tower types | 第43-45页 |
| 4.3.1 Conductor surface voltage gradient results | 第44页 |
| 4.3.2 Ground level electric field distribution results | 第44-45页 |
| 4.3.3 Ground level magnetic field distribution results | 第45页 |
| 4.4 Chapter summary | 第45-46页 |
| CHAPTER 5 CASE STUDY OF A 500 kV AC NETWORK | 第46-60页 |
| 5.1 Gathered data | 第46-50页 |
| 5.1.1 Sag and tension analysis | 第47页 |
| 5.1.2 Electromagnetic field distribution under the line | 第47-50页 |
| 5.2 Simulation of electromagnetic field transients | 第50-52页 |
| 5.3 High voltage circuit breaker operation | 第52页 |
| 5.4 Effects of transients on conductor sag and tension | 第52-53页 |
| 5.5 Mitigation of electromagnetic fields under high voltage lines | 第53-54页 |
| 5.6 Dynamic loading studies | 第54-58页 |
| 5.6.1 Series compensation of a high voltage line | 第54-58页 |
| 5.6.2 Software program for sag and tension | 第58页 |
| 5.7 Chapter summary | 第58-60页 |
| CONCLUSION | 第60-62页 |
| REFERENCES | 第62-67页 |
| ACKNOWLEDGMENTS | 第67-68页 |
| APPENDIX A (PUBLICATIONS) | 第68-69页 |
| APPENDIX B (SAG AND TENSION PROGRAM FOR DYNAMIC LOADING) | 第69-70页 |
| APPENDIX C (FIGURE 4.5 ELECTRIC FIELD DISTRIBUTION PROGRAM) | 第70-72页 |
