Dissertation > Excellent graduate degree dissertation topics show

Research on the Induced Overvoltages in Electric Transmission Lines by Directly Lightning Striking on Tower

Author: YanFei
Tutor: LinFuChang
School: Huazhong University of Science and Technology
Course: High Voltage and Insulation Technology
Keywords: Induced overvoltage Numerical calculation Offset field method Software simulation Influencing factors
CLC: TM862
Type: Master's thesis
Year: 2006
Downloads: 308
Quote: 1
Read: Download Dissertation

Abstract


Overvoltage caused by lightning strikes in the power system , to produce one of the main reasons of the accident . With the improvement of power system voltage levels , China's current procedures recommended induction overvoltage formula has not correctly reflect the actual situation , derivation and to determine realistic induction overvoltage calculated waveform function as anti- Ray calculations and mine design basis . This paper for lightning tower , over-voltage induced in the wire size and waveform . Theory point of order method, loop method , offset field method including a variety of induction voltage calculation methods and their characteristics . Details of the theory and calculation of the offset field method , and this method as the theoretical basis for the development of the induced voltage digital simulation software , the software is able to calculate the different structure towers in different lightning shed lightning induced overvoltage . Calculated considering uplink pilot studies have shown that the length of the upward leader of the induced voltage , the induced voltage of one of the important factors affecting . Different lightning parameters and tower parameters of the induction voltage amplitude and waveform are discussed , including the main discharge speed, lightning current peak uplink pilot length , grounding resistance . Final curve fitting , numerical calculation , derived the lightning tower induction voltage waveform function . The waveform function can be used to lightning calculation and to calculate lightning over-voltage and can be combined with EMTP-ATP simulation software .

Related Dissertations

  1. Research of Electromagnetic Tracking Experimental System for Medical Application,TN966
  2. An Analysis on Consumers’ Cognition and Attitudes of Genetically Modified Edible Oil,F426.82
  3. Study on the Variation of Soil Clay Minerals and Influence Factors in Karst Regions under Different Rocky Desertification, Southwest China,X171
  4. College Students’ Subjective Well-being and Influential Factors of the Training Path,B844.2
  5. A Study on the Factors Affecting the Cultivation of Voluntary Physical Exercise in Graduate,G807.4
  6. Dynamic Simulation and Force Analysis of Human Knee Joint,R318.01
  7. Analysis of Influencing Factors of Vehicle Insurance Operational Efficiency,F842.6
  8. A Study of the Obstacles and Countermeasure in Village Committee Election,D422.6
  9. A Study on the Factors of Performance of Mergers and Acquisitions in Chinese Listed Companies,F271
  10. Survey on Status and Influencing Facts of Nursing Students’ Attitudes Towards Learning,R-4
  11. Study on Reproductive Health Status and Influencing Factors of Sexual Behavior Among Adolescents in Hubei Province,R179
  12. Study on the Health Service Utilization of Children Left-behind in Western Rural Areas,R179
  13. Research on Carbon Dioxide Abatement Cost of Industrial Sector in China,F205;F224
  14. The Research on the Influence Factors and Control Countermeasures of the Implicit Cost in Construction Stage of Construction Project,F285
  15. A Research on the Enterprises Income Tax and It’s Influencing Factors,F812.42
  16. The Mud Mechanism and Disposal Study of Mud Inrush in Katst Tunnel,U455.49
  17. Study of Operating Speed Prediction Model for Passenger Cars in Tunnel of Expressway,U491
  18. Study of Factor Analysis of Metabolic Syndrome and the Influencing Factors on Metabolic Sydrome in Male Police,R589
  19. The Hongkou District preschoolers Obesity and its influencing factors,R179
  20. Methodology Study on Prediction and Determinants of Total Health Expenditures in China,R197.1
  21. The Research on Strategies to Enhance College-graduate Village Official Job Satisfaction,D422.6

CLC: > Industrial Technology > Electrotechnical > High Voltage Engineering > Overvoltage and Its Protection > Over-voltage protection devices
© 2012 www.DissertationTopic.Net  Mobile