Dissertation > Excellent graduate degree dissertation topics show

Research on Time-delay Stability of Power System in Large Scale

Author: JiangZuoLang
Tutor: JiaHongJie
School: Tianjin University
Course: Proceedings of the
Keywords: Power System Time-delay Stability Region Wide-area Protection and Control Interpolation Simulation
CLC: TM712
Type: Master's thesis
Year: 2010
Downloads: 72
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of the interconnected power system in China, power system stability has been drawn more and more attention. As a matter of fact, it is the trend to control and manage power grid with the help of wide area measurement system(WAMS). However, large-scale time-delay which is caused by the signal transmission in WAMS can exert innegligible influence on power system stability. In this thesis, stability analysis on power system with time delays are deeply studied. Main work of this thesis is as following:The mathematical models of power system with time delay are discussed, and the criterion of the small-signal stability is given. Algorithm to solve the differential- algebraic equation(DAE) is given in order to simulate the power system with time delays in the time domain. To avoid the infinite recursion in Runge-Kutta method, a novel method based on interpolation process is given to obtain the past status. An efficient method based on 4-point interpolation is introduced to acquire the root trace of an dynamic system with time-delay. The odd features of the root trace such as the Archimedes helix are discovered as well.A simplified method is introduced to obtain the stability region and its boundary in laege-scale time-delay. This method tracks the eigenvalue traces of a complex matrix to obtain the system stability region and its boundary with large-scale time-delay efficiently.A typical time-delayed system and WSCC 3g9n system are employed to do some validating studies. Besides the stability region and the root trace, some non-linear features of time-delayed systems are discovered as well, for example, the oval relationship between the rotor angel and the transient voltage, and the dynamic behavior which is very similar to chaos.

Related Dissertations

  1. The Study of a Radial Point Interpolation Meshless Method with Polynomial Basis and It’s Application,O241
  2. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  3. Study of Interaction between Epoxy Molecules and Carbon Fiber Surface with Molecular Simulation,TB332
  4. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  5. Study on Springback of High-Strength Steel Stamping,TG386
  6. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  7. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  8. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  9. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  10. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  11. Research on Orbital Control Method for Space Rendezvous and Docking,V526
  12. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  13. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  14. Single Neuron PID Control for Electro-Hydraulic Servo Unit of Ship Rudder,U666.152
  15. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  16. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  17. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  18. Numerical Simulation of Biomass Direct Reburning,TK16
  19. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  20. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  21. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173

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