Dissertation > Excellent graduate degree dissertation topics show

Power System Risk Assessment Considering Protection Failures

Author: DuZuoShi
Tutor: LinXiangNing
School: Huazhong University of Science and Technology
Course: Proceedings of the
Keywords: Cascading failure Protection hidden failure Risk assessment Markov Monte Carlo
CLC: TM77
Type: Master's thesis
Year: 2010
Downloads: 133
Quote: 1
Read: Download Dissertation

Abstract


In recent years widespread blackouts at home and abroad showed that protection misoperation、refusing action and load transfer were one of the main reason led to the large power system blackouts.Therefor, to ensure the protection system in perfect condition and operation correct is an important question of power system. It’s meaningful to research the protection reaibility impact on the cascading failure.In this paper, based different action logic and configuration of protection, we set up two failure probability models, only cosdering protection itself and considering primary system. And we can solve the failure probability of probability using the Markov method. And the model can exactly describe the protection impact on the power system risk assessment.Based on the power sytem risk assessment model and algorithmic, we can caculate the risk index with Monte Carlo method. And then compare the average and scattered sampling and the tranditional simple sampling.Finally, we use Monte Carlo method to simulate the cascading failure action caused by the protection hidden failure, and propose a set of composite method to research the cascading failure. The test example proves the protection impact on power system risk assessment.This paper research on the protection failure mode, Monte Carlo method, power system risk assessment algorithm and cascading failure risk assessment considering the protection hidden failure. It aims at improving risk assessment more reliable and effect, so that it can prevent the cascading failure and keep the power system safe and stable.

Related Dissertations

  1. Transient Thermal Analysis of Multi-Body System with Complicated Boundary Conditions,TK124
  2. Packet Loss Recovering Technology for Speech Transmission over Network,TN912.3
  3. Research on Domain Entity Attribute and Event Extraction Technology,TP391.1
  4. Dosimetric Characteristics of Photon Beam in the Medium Interface Region,R815
  5. Aerial Target Anti-interference Recognition and Tracking System,TN215
  6. Based on statistical methods of magnetic resonance imaging of the human brain image segmentation and three-dimensional analysis of the data,R445.2
  7. Health Risk Assessment of a Brownfield Contaminated by Volatile Chlorinated Hydrocarbons and Study on Screening of Remediation Technique,X820.4
  8. Biotypes of Bemisia Tabaci and Resistance Risk Assessment on B Biotype to Pyriproxyfen in XinJiang,S433
  9. Researches on Urban Rail Transportation Operation Management System Test and Evaluation Method,TP311.52
  10. BOT financing risk assessment method based on fault tree study,F283
  11. Detection and Tracking of Moving Object in Complex Background,TP391.41
  12. Risk Assessment and Decision of the Railway Cuttings in Southwest Mountain Area,U213.12
  13. Recognition of Splice Sites Based on Variable Length Markov Model,Q75
  14. Research on Precipitation Distribution Pattern and Flood Disaster Forecasting in Typical Areas of Changbai Mountain,P426.616
  15. Credit Risk Assessment of Power Projects,F832.41
  16. Reliability Evaluation of Distribution System Based on Monte-Carlo Method,TM732
  17. Research on the Using Fuzzy Mathematics to Predict Coal and Gas Outburst,TD713
  18. Environmental audit risk identification, assessment and control of,F239.6
  19. Import and export of food risk management systems research, design and development,F752.6
  20. Studies on Automatic Train Operation (ATO) in Inter-city Rail Transport Systems,U284.48
  21. Rural Commercial Bank Credit Risk Assessment System Design and Implementation,F224;F832.3

CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system protection
© 2012 www.DissertationTopic.Net  Mobile