Saturday, November 27, 2010

Journal : Simulated Annealing (SA) of Transient Stability


  [1]  A. Ajami and H. Asadzadeh, "AIPSO-SA Based Approach for Power System Oscillation Damping with STATCOM," International Review of Electrical Engineering-Iree, vol. 5, no. 3, pp. 1138-1150, May2010.
Abstract: Power system dynamic stability enhancement by STATCOM-based stabilizers is thoroughly investigated in this paper. This study presents singular value decomposition (SVD) based approach to assess and measure the controllability of the poorly damped electromechanical modes by STATCOM different control signals. The supplementary controller of STATCOM to damping the low frequency oscillation in a weakly connected system is presented. Individual designs of the STATCOM controller using adaptive improved particle swarm optimization hybrid with simulated annealing (AIPSO-SA) are discussed. In this paper, the STATCOM-based controllers' parameters are optimized over a wide range of operating conditions and system parameter uncertainties (multi point tuning) in order to have robust stabilizers. The effectiveness of proposed controller on enhancing dynamic stability is tested through eigen value analysis and time domain simulation. Also nonlinear and electrical simulation results show the validity and effectiveness of the proposed control schemes over a wide range of loading conditions. It is also observed that the proposed STATCOM-based damping stabilizers enhance greatly the power system transient stability.

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