Post-outage reactive power flow calculations by genetic algorithms: Constrained optimization approach Academic Article uri icon


  • This paper presents genetic algorithm-based post-outage voltage and reactive power calculations for transmission line and transformer outages. Deficiencies of the traditional sensitivity-based (linear) methods are overcome by formulation of a line outage as nonlinear constrained optimization problem for a bounded network. The proposed optimization problem is later solved for bounded network variables by genetic algorithms. The accuracy of the method is tested on IEEE 14-bus and IEEE 57-bus test systems. Simulation results are compared both with the results of a full power flow study and with the results of the papers presented in the literature. The results have shown that the proposed method improves the accuracy of post-outage voltage and reactive power values with less computational effort. 2005 IEEE.

published proceedings


author list (cited authors)

  • Ozdemir, A., Lim, J. Y., & Singh, C.

citation count

  • 24

complete list of authors

  • Ozdemir, A||Lim, JY||Singh, C

publication date

  • August 2005