Abhishek JainAranya ChakraborttyEmrah BiyikChakrabortty, AranyaBiyik, EmrahJain, Abhishek2025-10-0620179798350328066, 0780308611, 0780355199, 9781424420797, 9780780308619, 0780338324, 9780780345300, 9781479932726, 1424402107, 97815386792659781509059928074316190743-16192378-586110.23919/ACC.2017.79632612-s2.0-85027077008https://www.scopus.com/inward/record.uri?eid=2-s2.0-85027077008&doi=10.23919%2FACC.2017.7963261&partnerID=40&md5=871f302e8e16bf31d7177620c9648b88https://gcris.yasar.edu.tr/handle/123456789/9677https://doi.org/10.23919/ACC.2017.7963261This paper presents an online distributed control design for suppressing inter-area oscillations in large power systems under structural constraints posed on the underlying communication network. The presence of multiple clusters of generators in a power system results in several inter-area oscillation modes. By modal analysis we first show that the contribution of each inter-area mode on the electromechanical state response of the generators is heavily dependent on the perturbed initial state of the system. We then take advantage of this observation to design structural constraints on the communication graph. A parallelized constrained linear quadratic regulator (LQR) design is then proposed to balance the tradeoff between performance and the level of sparsity induced in the network. Algorithms for practical implementation of the design are provided. Results are compared with the full order LQR and illustrated on the New England 39-bus power system model. © 2017 Elsevier B.V. All rights reserved.Englishinfo:eu-repo/semantics/closedAccessConstrained Control, Distributed Control, Modal Analysis, Power Systems, Circuit Oscillations, Distributed Parameter Control Systems, Modal Analysis, Online Systems, Standby Power Systems, Communication Graphs, Constrained Controls, Distributed Control, Inter-area Oscillations, Large Power Systems, Linear Quadratic Regulator, Power System Networks, Structural Constraints, Electric Power System ControlCircuit oscillations, Distributed parameter control systems, Modal analysis, Online systems, Standby power systems, Communication graphs, Constrained controls, Distributed control, Inter-area oscillations, Large power systems, Linear quadratic regulator, Power system networks, Structural constraints, Electric power system controlConstrained ControlPower SystemsModal AnalysisDistributed ControlConference Object