Power system simulations that extend over a time period of minutes, hours, oreven longer are called extended-term simulations . Extended-term simulation is needed for many power system analysis tasks (e.g., resilience analysis, renewable energyintegration, cascading failures) The conventional approaches are insufficient for dealing with the extended-time simulation of multi-timescaleprocesses . This paper proposes a new approach based on the holomorphic embedding (HE) methodology . Its accuracy and computationalefficiency are backed by HE’s high accuracy in event-driven simulation, largerand adaptive time steps, and flexible switching between full-dynamic andquasi-steady-state (QSS) models .

Author(s) : Rui Yao, Feng Qiu

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Keywords : simulation - extended - time - term - holomorphic -

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