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Optimal Multisine Probing Signal Design for Power System Electromechanical Mode Estimation

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Title: Optimal Multisine Probing Signal Design for Power System Electromechanical Mode Estimation
Authors: Perić, Vedran
Bombois, Xavier
Vanfretti, Luigi
Keywords: experiment design
mode estimation
situational awareness
system identification
Issue Date: 04 Jan 2017
Abstract: This paper proposes a methodology for the design of a probing signal used for power system electromechanical mode estimation. Firstly, it is shown that probing mode estimation accuracy depends solely on the probing signal’s power spectrum and not on a specific time-domain realization. A relationship between the probing power spectrum and the accuracy of the mode estimation is used to determine a multisine probing signal by solving an optimization problem. The objective function is defined as a weighting sum of the probing signal variance and the level of the system disturbance caused by the probing. A desired level of the mode estimation accuracy is set as a constraint. The proposed methodology is demonstrated through simulations using the KTH Nordic 32 power system model.
Pages/Duration: 9 pages
ISBN: 978-0-9981331-0-2
DOI: 10.24251/HICSS.2017.382
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
Appears in Collections:Monitoring, Control, and Protection Minitrack

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