Dissertation > Excellent graduate degree dissertation topics show

Study on the Subway Power Supply System Reliability Assessment and Safety Evaluation Method

Author: ShenLiLi
Tutor: YanShanYu
School: Dalian Jiaotong University
Course: Environmental Science
Keywords: The metro power supply system Failuture tree Failure mode and effectanalysis reliability prediction Grey whitenization weight function clusterin
CLC: U231.8
Type: Master's thesis
Year: 2013
Downloads: 24
Quote: 0
Read: Download Dissertation

Abstract


The subway gets more and more favored by people, because of its fast and comf ort, has been the object of city rail transit development. Power supply system is an i mportant part of the subway, not only to provide traction power for electric trains, but also to provide electrical energy for other facilities of the subway. If the power suppl y gets problems, will not only cause the subway transportation paralysis, bring great e conomic losses, also endanger the life safety of the passengers. Therefore, it becomes more and more important to analyse and research on how to improve the reliability a nd safety of the metro power supply system.After the research on the evaluation of reliability evaluation and security areas, th is passage dose a comparative study on the analysis of reliability evaluation method a nd safety evaluation method, find out which research method to more suitable for met ro power supply system for assessment and prediction.This paper focuses on the reliability analysis of the traction power supply system, including the reliability evaluation and prediction. In Tianjin Metro Line1as the pro totype, it analyzes the operation mode of the traction power supply system, and evalu ates the reliability according to the operation mode. First, the passage makes the quali tative and quantitative analysis to traction substation by using fault tree, getting the m inimum cut sets and structure importance degree, and the components/systems of influ encing the reliability of equipment greatly, which is the main component of possible f ault. According to these main components, makes the fault mode effect analysis. Then according to the reliability parameter knowned, calculating the failure probability of t he top event, to get the reliability of the traction substation, and puts forward a series of measures to improve the reliability of traction substation.Then, it makes a reliability prediction to the system.this paper uses the mathema tical model analysis method, established the mathematical model of system reliability p rediction, according to the known parameters to calculate the system reliability predicti on; in accordance with the actual monitoring data of Metro Inc to calculate reliable d egree of the actual measured value. The results shows that the veracity of the theory of reliability prediction is high, the reliability mathematical model and reliability evalu ation method used in this study has high accuracy and practicability.Finally, it makes an analysis of the safety evaluation of metro power system, and finds out factors influencing safety of power supply system of metro, setting up safet y evaluation index system of power supply system.using the grey whitenization weigh t function clustering method,grey whitenization weight function clustering evaluation m odel is established, in Tianjin Metro Line1as an example, has carried on the exampl eanalysis, the final results consistent with the actual level of security of the Metro Inc, to prove the accuracy and practicability of the method. And improvement measures ar e proposed for the deficiency of subway.

Related Dissertations

  1. Reliability of Decanters,TQ051.8
  2. Research on Software ReliabilityPrediction Techniques,TP311.52
  3. Reliability Analyses and Design of Portable Satellite Communication Earth Station Instrument,TN927.21
  4. Reliability of portable pulse generator,TN782
  5. A fuze reliability of electronic timers,TJ430
  6. The Reliability Evalution of the LJ6010 Multi-function Series Standard Source,TB114.3
  7. Key Technologies of Failure Analysis and Reliability Prediction Based on Statistical Learning Theory,TB114
  8. Risk and Condition Based Intelligent Maintenance Decision-making Optimization System and Application Research,TH186
  9. Optical Fiber Current Measurement Technique for HVDC Transmission System,TM933.1
  10. Mechanical product conceptual design process modeling and problem solving research program,TH122
  11. Research on Reliability Prediction Mechanism for High-Power LEDs,TN312.8
  12. Reliability Prediction of the CNC System and the Research on Reliability of CNC Software,TG659
  13. Theoretical and Empirical Research on Maintenance Decision of Starch Production System Based on Reliability Prediction,TS233
  14. The Research and Application for Decision Technology of Equipment Based on Reliability Centered Maintenance,TH17
  15. Research of VXI bus module engineering key technology,TJ06
  16. Performance analysis of rocket fuze reliability and a buffer material penetration,TJ431.5
  17. The Analysis and Reliability Prediction of Shaft Type Marine Power Station System,U665.12
  18. The Study of Short-Circuit Current Calculation and Fault Location Method of Dc Traction Power Supply System,TM922.3
  19. Reliability Allocation and Prediction for Dual-stage System of Lithography,TN405
  20. Research and implementation of reliability prediction of electronic system failure based on Physics,TN406

CLC: > Transportation > Rail transport > Special railway > Mass Transit Railway > Metro Power , electrical equipment
© 2012 www.DissertationTopic.Net  Mobile