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Identification and estimation of equivalent area parameters using synchronised phasor measurements

journal contribution
posted on 06.12.2017, 00:00 by A Vahidnia, G Ledwich, Edward PalmerEdward Palmer, A Ghosh
A new approach is proposed for obtaining a non-linear area-based equivalent model of power systems to express the inter-area oscillations using synchronised phasor measurements. The generators that remain coherent for inter-area disturbances over a wide range of operating conditions define the areas, and the reduced model is obtained by representing each area by an equivalent machine. The parameters of the reduced system are identified by processing the obtained measurements, and a non-linear Kalman estimator is then designed for the estimation of equivalent area angles and frequencies. The simulation of the approach on a two-area system shows substantial reduction of non-inter-area modes in the estimated angles. The proposed methods are also applied to a ten-machine system to illustrate the feasibility of the approach on larger and meshed networks.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

8

Issue

4

Start Page

697

End Page

704

Number of Pages

8

eISSN

1751-8695

ISSN

1751-8687

Location

UK

Publisher

The Institution of Engineering and Technology

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Queensland University of Technology; TBA Research Institute;

Era Eligible

Yes

Journal

IET generation, transmission & distribution.

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