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Séminaire du GERAD

Applications of polynomial chaos expansion-based methods in power system probabilistic security assessments


8 déc. 2021   11h00 — 12h00

Xiaozhe Wang Professeure adjointe, Département de génie électrique et informatique, Université McGill, Canada

Xiaozhe Wang

Présentation sur YouTube

The ever-increasing integration of renewable energy sources and new forms of load demand introduces a growing uncertainty level to power systems, which greatly affect various security properties of a system. In this talk, I will present some recent works of my group in utilizing polynomial chaos expansion (PCE)-based methods in power system probabilistic security assessments including probabilistic power flow solutions, available transfer capability assessments, and economic dispatch. In contrast to Monte Carlo-based simulations that require a large number of scenarios and model evaluations, the polynomial chaos expansion method can build a surrogate model for assessing the model response (e.g., probabilistic power flow solution) from a small number of scenarios and model evaluations, which thus saves huge computational efforts. I will also introduce the efforts to relax the assumption of knowing marginal distributions of random variables required in PCE. Insights for decision-making to reduce the negative impacts of uncertainty on power system security will also be discussed.

Peter E. Caines responsable
Olivier Bahn responsable


Montréal Québec Canada

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