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In this paper, we analysis the effects of tie-line impedance value on the damp of interconnected power systems from the viewpoint of damping characteristics. Based on the interconnection between Xin Jiang power grid and Northwest power grid, this paper is focused on the changes in damping characteristics before and after interconnection. The simulation after increase of tie-lines in accordance with...
With the development of power grid interconnection, the low frequency oscillation is becoming more and more prominent which threats the stability of the system. It consists of local modes and inter-area modes, and the effectiveness of local PSS in damping inter-area modes is limited. Then the global power system stabilizer (GPSS) based on WAMS (Wide Area Measurement System) is proposed. First 3 problems...
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