Correction factors for dynamic state estimation of aggregated generators

Vahidnia, A, Ledwich, G and Mishra, Y 2015, 'Correction factors for dynamic state estimation of aggregated generators', in Proceedings of the IEEE Power and Energy Society General Meeting (PES 2015), Denver, Colorado, United States, 26-30 July 2015, pp. 3029-3033.


Document type: Conference Paper
Collection: Conference Papers

Title Correction factors for dynamic state estimation of aggregated generators
Author(s) Vahidnia, A
Ledwich, G
Mishra, Y
Year 2015
Conference name PES 2015
Conference location Denver, Colorado, United States
Conference dates 26-30 July 2015
Proceedings title Proceedings of the IEEE Power and Energy Society General Meeting (PES 2015)
Publisher IEEE
Place of publication United States
Start page 3029
End page 3033
Total pages 5
Abstract This paper presents an approach for dynamic state estimation of aggregated generators by introducing a new correction factor for equivalent inter-area power flows. The spread of generators from the center of inertia of each area is summarized by the correction term α on the equivalent power flow between the areas and is applied to the identification and estimation process. A nonlinear time varying Kalman filter is applied to estimate the equivalent angles and velocities of coherent areas by reducing the effect of local modes on the estimated states. The approach is simulated on two test systems and the results show the effect of the correction factor and the performance of the state estimation by estimating the inter-area dynamics of the system.
Subjects Power and Energy Systems Engineering (excl. Renewable Power)
Keyword(s) State estimation
Identification
Phasor Measurement Units
Power system stability
DOI - identifier 10.1109/PESGM.2015.7286335
Copyright notice © 2015 IEEE
ISBN 9781467380416
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