Optimal siting of power system stabilisers

Presents a methodology to identify the critical eigenvalues, or modes, in electric power systems, and a procedure to determine the optimal siting for power system stabilisers. The critical modes are identified using the contributions of the different eigenvalues to a quadratic performance measure and explicit expressions for these contributions are derived. Feasibility and minimum number of decentralised controllers are obtained from sensitivity analysis. The most effective locations for power system stabilisers are then determined using eigenvalue dynamics and a multimachine power system example is given to illustrate the proposed techniques