Analytic sensitivity method for transient security assessment in typical simulated Hong Kong and South China interconnected system

Pao Yue-kong Library Electronic Theses Database

Analytic sensitivity method for transient security assessment in typical simulated Hong Kong and South China interconnected system

 

Author: Chiu, Tai-chuen
Title: Analytic sensitivity method for transient security assessment in typical simulated Hong Kong and South China interconnected system
Degree: M.Sc.
Year: 1995
Subject: Interconnected electric utility systems -- China -- Hong Kong
Interconnected electric utility systems -- China
Transients (Electricity)
Electric power system stability
Hong Kong Polytechnic University -- Dissertations
Department: Multi-disciplinary Studies
Pages: 1 v. (various pagings) : ill. ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1205013
URI: http://theses.lib.polyu.edu.hk/handle/200/1146
Abstract: Transient Security Assessment through Extended Equal Area Criterion (EEAC) and Sensitivity Analysis are applied to a typical Hong Kong and South China interconnected system. The results in critical fault clearance time and angle of various fault locations and loading conditions are compared with conventional swing curve method. On the other hand, power generation transient stability limit of the system is found, which is useful to generation planning. This report will explain the theory of EEAC, Sensitivity Analysis, Power Generation Transient Stability Limit and the power system model used. It is followed by application, comparison and evaluation of different methods. Two computer programs are written. The procedures are shown below: For EEAC program: 1) Input data. 2) Build bus admittance matrices. 3) Compute load flow to find busbar voltage and angle by Gauss-Seidel Method. 4) Reduce size of the admittance matrices by matrix algebra. 5) Find critical machine. 6) Compute critical fault clearing angle by EEAC. 7) Calculate critical fault clearing time by Taylor Series. 8) Calculate sensitivity of transient stability margin with respect to generation power. 9) Draw generation power limit versus critical clearing time curve. For Swing Curve program: 1) Input data. 2) Build bus admittance matrices. 3) Compute load flow to find busbar voltage and angle by Gauss-Seidel Method. 4) Reduce size of the admittance matrices by matrix algebra. 5) Compute critical fault clearing angle and time by Swing Curve Method. From the result of this project, it verifies the potential of applying EEAC and Sensitivity Analysis to small and medium size power systems.

Files in this item

Files Size Format
b12050131.pdf 2.696Mb PDF
Copyright Undertaking
As a bona fide Library user, I declare that:
  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

     

Quick Search

Browse

More Information