@ARTICLE{ iet:/content/journals/10.1049/iet-cps.2017.0017, author = {Muharrem Ayar}, affiliation = { Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA }, author = {Rodrigo D. Trevizan}, affiliation = { Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA }, author = {Serhat Obuz}, affiliation = { Department of Electrical and Electronics Engineering, Eskisehir Osmangazi University, Eskisehir, Turkey }, author = {Arturo S. Bretas}, affiliation = { Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA }, author = {Haniph A. Latchman}, affiliation = { Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA }, author = {Newton G. Bretas}, affiliation = { Department of Electrical and Computer Engineering, University of Sao Paulo, Sao Carlos, SP, Brazil }, keywords = {nonlinear model-free-based control;smart grids;time-delay compensation technique;IEEE 39 bus test system;additive disturbance;transient stability margins;state estimation architecture;cyber-physical robust control framework;Lyapunov stability analysis;}, language = {English}, abstract = {Transient stability of power systems has become even more critical due to increasing complexity created by large penetration of renewable energy sources and massive deployment of information and communication technology. Fortunately, the two-way real-time data exchange capacity of smart grids allows designing advanced digital control schemes to better address the power system stability. In this study, a non-linear model-free-based robust controller in conjunction with a state estimation architecture is designed to enhance transient stability margins. The designed controller addresses uncertainties arising from communication and control input delay, sensor errors, varying plant parameters, and unmodelled dynamics effects. A novel time-delay compensation technique is presented in the control development to mitigate the effect of delay and the robustness of the proposed controller is proven by conducting a Lyapunov stability analysis with respect to additive disturbance and time delay. Furthermore, the proposed control framework is validated on the IEEE 39 bus test system through MATLAB simulation. The results show that the proposed framework is capable of stabilising the power system after a fault, also showing robustness to noise, latency in communication, delay in control input, and malicious data injection.}, title = {Cyber-physical robust control framework for enhancing transient stability of smart grids}, journal = {IET Cyber-Physical Systems: Theory & Applications}, issue = {4}, volume = {2}, year = {2017}, month = {December}, pages = {198-206(8)}, publisher ={Institution of Engineering and Technology}, copyright = {This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)}, url = {https://digital-library.theiet.org/;jsessionid=3bk0je8s8u1ur.x-iet-live-01content/journals/10.1049/iet-cps.2017.0017} }