<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In large-scale power systems, the wide-area damping controller (WADC) using remote input signals is an effective device that can be applied to deal with poor inter-area oscillation damping. However, its control effect will be degraded by communication uncertainties such as variable time delays in both input and output sides of WADC, partial and complete communication failures. This paper focuses on a new WADC design by regarding communication uncertainties. Such uncertainties are mathematically formulated and analyzed in order to signify its impact on the oscillatory stability. The signal restoration of input and output pairs of WADC is proposed to alleviate an adverse effect of communication uncertainties. Simulation study in an IEEE 50-machine 145-bus test system elucidates that the proposed WADC is superior to that of the conventional WADC without considering communication uncertainties in both performance and robustness.</p></abstract>

In large-scale power systems, the wide-area damping controller (WADC) using remote input signals is an effective device that can be applied to deal with poor inter-area oscillation damping. However, its control effect will be degraded by communication uncertainties such as variable time delays in both input and output sides of WADC, partial and complete communication failures. This paper focuses on a new WADC design by regarding communication uncertainties. Such uncertainties are mathematically formulated and analyzed in order to signify its impact on the oscillatory stability. The signal restoration of input and output pairs of WADC is proposed to alleviate an adverse effect of communication uncertainties. Simulation study in an IEEE 50-machine 145-bus test system elucidates that the proposed WADC is superior to that of the conventional WADC without considering communication uncertainties in both performance and robustness.

Wide-area damping control using signal restoration under communication uncertainties

Department of Electrical Engineering, Faculty of Engineering

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

In large-scale power systems, the wide-area damping controller (WADC) using remote input signals is an effective device that can be applied to deal with poor...

Wide-area damping control using signal restoration under communication uncertainties

Published Online: Aug 10, 2020

Page range: 165 - 174

Received: Apr 19, 2020

DOI: https://doi.org/10.2478/jee-2020-0023

Keywords
communication uncertainties, time variant delay, inter-area oscillation, signal failures

© 2020 Issarachai Ngamroo, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Wide-area damping control using signal restoration under communication uncertainties

Published Online: Aug 10, 2020

Page range: 165 - 174

Received: Apr 19, 2020

DOI: https://doi.org/10.2478/jee-2020-0023

Keywordscommunication uncertainties, time variant delay, inter-area oscillation, signal failures

© 2020 Issarachai Ngamroo, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
communication uncertainties, time variant delay, inter-area oscillation, signal failures