Design Wide-area PSS Based on Hybrid Eigenvalue Sensitivity
In order to damp the low frequency in power system,the design method of Wide-area PSS is presented based on hybrid eigenvalue sensitivity.In this paper,the hybrid eigenvalue sensitivity index is introduced firstly.Then according to the mode-machine interdependent characteristics,the amplitude of the hybrid eigenvalue sensitivity is proposed for selecting the allocation of Wide-area PSS,and the mode shape equivalent is used for selecting wide-area feedback signal,and the phase angle of hybrid eigenvalue sensitivity is adopted to design the parameters.Simulations on IEEE39-test system demonstrate the validity of the method in damping the inter-area oscillation modal and enhancing the small-signal stability.