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Electric Grid Hardening and Resiliency: Part I, Resiliency and Safety

Electric Grid Hardening and Resiliency: Part I, Resiliency and Safety

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Part I of the article summarizes research findings used for electric grid resiliency and safety. Resiliency and safety aspects of the grid, appearing as two sections of Part I are based on development of algorithms using grid topology in steady-state mode of operation and provide information for designing a more robust, efficient system while ensuring safety. Planning for robust grids using dynamic models and real-time response of equipment to system disturbances is addressed in Part II as an independent complementary sequel to Part I. In this article, grid resiliency is defined by reduction of the load down-time in Gulf Coast states, and it is improved by implementing the results from studying the system response to impact of tropical storms on the transmission system. Grid safety is measured by correctly identifying fault locations on transmission lines in Gulf Coast states and by providing guidelines for safely deenergising the faulted transmission lines. While the authors' main focus in Part I is on the use of steady-state system topology and modelling, the authors will use system dynamics and real-time modelling and simulation of Independent Pole Operation addressing dynamic aspects of robust system planning for power flow improvement in Part II of the article. The work presented in Part I and Part II of the article is performed at the Entergy-UNO Power and Energy Research Laboratory (PERL) at the University of New Orleans.


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