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Polytope uncertainty is suitable for time varying uncertainty analysis in power systems. The addition of uncertain factor increases the robustness of close-loop system. Firstly, wide area information measured by PMUs is used as controller input to control the power transferred by HVDC. Then, an extended LMI approach is used in the controller's design considering the uncertainty. In the paper the state...
A method to analyze the low frequency oscillation of the uncertain electric power system is proposed. When the structure of the system changes, based on the system reduced admittance matrix, the classic generator model, and the data acquired by PMU, the change of the system state matrix can be calculated by using Taylor series expansion. With the initial state matrix and its left and right eigenvectors,...
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