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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...
In this paper, we have made two improvements in region growing image segmentation. The First one is seeds select method, we use Harris corner detect theory to auto find growing seeds, through this method, we can improve the segmentation speed. The second one is growing rule. The homogeneity criterion usually depends on image formation properties that are not known to the user. We induced a new uncertainty...
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