Damping of inter-area oscillations in multimachine systems
by Jeevanandham Arumugam; Sumathi Jeevanandham; Mo Jamshidi
International Journal of Automation and Control (IJAAC), Vol. 8, No. 1, 2014

Abstract: A classical lead-lag power system stabiliser is used for demonstration in this paper. Four machines ten bus system and ten machine 39 bus systems are considered. The stabiliser parameters are selected in such a manner to damp the inter area and rotor oscillations. The problem of selecting the stabiliser parameters is converted into a simple optimisation problem with an eigenvalue-based objective function and it is proposed to employ tabu search and simulated annealing for solving optimisation problem. The objective function allows the selection of the stabiliser parameters to optimally place the closed-loop eigenvalues in the left hand side of the complex s-plane. The tuning results of various combinations of machines are compared. Stability is confirmed through eigenvalue analysis and simulation results.

Online publication date: Mon, 30-Jun-2014

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