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Mass-Matrix Differential-Algebraic Equation Formulation for Transient Stability Simulation

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Document pages: 3 pages

Abstract: This letter proposes a mass-matrix differential-algebraic equation (DAE)formulation for transient stability simulation. This formulation has twoprominent advantages: compatible with a multitude of implicit DAE solvers andcan be conveniently implemented based on the traditional formulation, forexample, by separating the parameters in denominators into the diagonals of themass matrix. It also allows reducing the dynamics using null time constants.Benchmark studies are presented on the time and accuracy of 17 implicit solversfor the proposed formulation using the Kundur s two-area system and a 2,000 bussystem.

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