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The influence of tie-line reactance on damping of inter-area oscillation mode is studied. The phenomenon of the inter-area mode damping ratio decreasing when inter-connection is strengthened is proposed. Main interconnected grids in China are tested by calculating sensitivity of eigenvalue to tie-line reactance, including Chuanyu-Mid China Grids, Northeast-North Grids, North-Mid Grids and Fujian-East...
This paper proposes oscillation energy analysis of inter-area mode oscillations for the investigation of inter-area power oscillations and their effective suppression by the design of a TCSC damping controller. The oscillation energy function developed in this paper can interpret inter-area mode oscillations as a continuous process of conversion between oscillation kinetic energy and potential energy...
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