Wide-area damping control for inter-area oscillations using inverse filtering technique

Goldoost Soloot, Reza, Mishra, Yateendra, & Ledwich, Gerard (2015) Wide-area damping control for inter-area oscillations using inverse filtering technique. IET Generation, Transmission & Distribution, 9(13), pp. 1534-1543.

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In this study, a non-linear excitation controller using inverse filtering is proposed to damp inter-area oscillations. The proposed controller is based on determining generator flux value for the next sampling time which is obtained by maximising reduction rate of kinetic energy of the system after the fault. The desired flux for the next time interval is obtained using wide-area measurements and the equivalent area rotor angles and velocities are predicted using a non-linear Kalman filter. A supplementary control input for the excitation system, using inverse filtering approach, to track the desired flux is implemented. The inverse filtering approach ensures that the non-linearity introduced because of saturation is well compensated. The efficacy of the proposed controller with and without communication time delay is evaluated on different IEEE benchmark systems including Kundur's two area, Western System Coordinating Council three-area and 16-machine, 68-bus test systems.

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ID Code: 84151
Item Type: Journal Article
Refereed: Yes
Keywords: Rotors, Nonlinear filters, Electric generators, Power system interconnection, Power system measurement, Magnetic flux, Power system reliability, Fault diagnosis, Power system control, Kalman filters
DOI: 10.1049/iet-gtd.2015.0027
ISSN: 1751-8695
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 The Institution of Engineering and Technology
Deposited On: 15 May 2015 00:47
Last Modified: 12 Sep 2016 00:41

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