TY - GEN
T1 - A pseudospectral estimation method and its application in modelling power system inter-area oscillations
AU - Zivanovic, Rastko
N1 - Funding Information:
* This work has been partly funded bythe iLAND project (ARTEMIS-JU 100026) funded by the ARTEMIS JTU Call 1 and the Spanish Ministry of Industry, Commerce, and Tourism. Also, this work has been partly funded by the ARTISTDesign NoE (IST-2007-214373) of the EU 7th Framework Programme.
PY - 2012
Y1 - 2012
N2 - A computational algorithm based on pseudospectral discretization of differential equations is developed to solve parameter estimation problems in nonlinear dynamical systems. The method approximates parameters and state trajectories by using Chebyshev interpolation polynomials. Nonlinear estimation problem discretized on the Chebyshev grid is solved iteratively. In each iteration a linear least squares sub-problem is solved a number of times on successfully finer grids till achieving the highest possible accuracy. The algorithm is applied to the problem of modelling inter-area oscillations using synchronized measurements obtained at terminals of transmission corridor of a large interconnected power system. Results of a simulation study are presented to demonstrate numerical accuracy of the proposed algorithm.
AB - A computational algorithm based on pseudospectral discretization of differential equations is developed to solve parameter estimation problems in nonlinear dynamical systems. The method approximates parameters and state trajectories by using Chebyshev interpolation polynomials. Nonlinear estimation problem discretized on the Chebyshev grid is solved iteratively. In each iteration a linear least squares sub-problem is solved a number of times on successfully finer grids till achieving the highest possible accuracy. The algorithm is applied to the problem of modelling inter-area oscillations using synchronized measurements obtained at terminals of transmission corridor of a large interconnected power system. Results of a simulation study are presented to demonstrate numerical accuracy of the proposed algorithm.
KW - nonlinear estimation
KW - Power system modelling
KW - pseudospectral method
UR - http://www.scopus.com/inward/record.url?scp=84874278984&partnerID=8YFLogxK
U2 - 10.1109/EPEPEMC.2012.6397409
DO - 10.1109/EPEPEMC.2012.6397409
M3 - Conference contribution
AN - SCOPUS:84874278984
SN - 9781467319713
T3 - 15th International Power Electronics and Motion Control Conference and Exposition, EPE-PEMC 2012 ECCE Europe
SP - LS2b.11-LS2b.16
BT - 15th International Power Electronics and Motion Control Conference and Exposition, EPE-PEMC 2012 ECCE Europe
T2 - 15th International Power Electronics and Motion Control Conference and Exposition, EPE-PEMC 2012 ECCE Europe
Y2 - 4 September 2012 through 6 September 2012
ER -