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Dynamic security region (DSR), containing lots of security information, can be used for emergence control and security assessment of power system, and it draws more and more attention in recent years. To obtain the boundary of DSR, the direct and approximation method are used, and the latter is the most credible way. This paper makes some improvements on the approximation of DSR mainly based on linear...
This paper proposes a method for calculating and analyzing section thermal limits under the condition of the security “N-1” criterion and forms the security region in multi-dimensional space. By calculating each generator's power transfer distribution factor (PTDF) on section lines, using the DC load flow model, the sensitive generators to the section thermal limits can be identified. With sensitive...
It has been one of the most effective way to fully develop the Distributed Generation (DG) when it is connected to the main power grid by way of microgrid, supporting each other with the main power grid. The research of the microgrid size and the specification of its acceptable capacity with respect to the main power grid will be beneficial to the best utilization of renewable energy resources, achieving...
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