Joint Frequency Regulation and Economic Dispatch Using Limited Communication
Author(s)Zhang, Jianan; Modiano, Eytan H
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We study the performance of a decentralized integral control scheme for joint power grid frequency regulation and economic dispatch. We show that by properly designing the controller gains, after a power flow perturbation, the control achieves near-optimal economic dispatch while recovering the nominal frequency, without requiring any communication. We quantity the gap between the controllable power generation cost under the decentralized control scheme and the optimal cost, based on the DC power flow model. Moreover, we study the tradeoff between the cost and the convergence time, by adjusting parameters of the control scheme.Communication between generators reduces the convergence time. We identify key communication links whose failures have more significant impacts on the performance of a distributed power grid control scheme that requires information exchange between neighbors.
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids
Institute of Electrical and Electronics Engineers (IEEE)
Zhang, Jianan and Eytan Modiano. "Joint Frequency Regulation and Economic Dispatch Using Limited Communication." IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids, October 2018, Aalborg, Denmark, Institute of Electrical and Electronics Engineers, December 2018 © 2018 IEEE