Advanced SearchSearch Tips
A Practical Exciter Model Reduction Approach For Power System Transient Stability Simulation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Practical Exciter Model Reduction Approach For Power System Transient Stability Simulation
Kim, Soobae;
  PDF(new window)
Explicit numerical integration methods for power system transient stability simulation require very small time steps to avoid numerical instability. The EXST1 exciter model is a primary source of fast dynamics in power system transients. In case of the EXST1, the required small integration time step for entire system simulation increases the computational demands in terms of running time and storage. This paper presents a practical exciter model reduction approach which allows the increase of the required step size and thus the method can decrease the computational demands. The fast dynamics in the original EXST1 are eliminated in the reduced exciter model. The use of a larger time step improves the computational efficiency. This paper describes the way to eliminate the fast dynamics from the original exciter model based on linear system theory. In order to validate the performance of the proposed method, case studies with the GSO-37 bus system are provided. Comparisons between the original and reduced models are made in simulation accuracy and critical clearing time.
Power System Transient Stability Simulation;Explicit Numerical Integration Method;Numerical Integration Time Step;Computational Efficiency;Exciter Model Complexity Reduction;EXST1;
 Cited by
A. A. Fouad, F. Aboytes, V. F. Carvalho, S. L. Corey, K. J. Dhir and R. Vierra, "Dynamic security assessment practices in North America," Power Systems, IEEE Transactions on, vol. 3, pp. 1310-1321, 1988.

P. Kundur, Power System Stability and Control. New York: McGraw-Hill, 1994.

P. W. Sauer and M. A. Pai, Power System Dynamics and Stability. Upper Saddle River, N.J.: Prentice Hall, 1998.

J. Machowski, J. Bialek, and J. Bumby, Power System Dynamics: Stability and Control. Chichester, U.K.: Wiley, 2008.

Simens PSS/E, ""

PowerWorld Corporation, ""


PowerWorld Dynamic model library, ""

Soobae Kim, Thomas Overbye, "Condition-based exciter model complexity reduction for improved transient stability simulation", IET Generation, Transmission, and Distribution, (IET E-First Available)

M. T. Heath, Scientific Computing: An Introductory Survey. Boston: McGraw-Hill, 2002.

J. D. Glover, M. S. Sarma and T. J. Overbye, Power System Analysis and Design. Stamford, CT: Cengage Learning, 2012.

PowerWorld GSO-37 system, ""