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Optimal load-side control for frequency regulation in smart grids

Mallada, Enrique and Zhao, Changhong and Low, Steven (2014) Optimal load-side control for frequency regulation in smart grids. In: 52nd Annual Allerton Conference on Communication, Control, and Computing. IEEE , Piscataway, NJ, pp. 731-738. ISBN 978-1-4799-8009-3.

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Frequency control rebalances supply and demand while maintaining the network state within operational margins. It is implemented using fast ramping reserves that are expensive and wasteful, and which are expected to grow with the increasing penetration of renewables. The most promising solution to this problem is the use of demand response, i.e. load participation in frequency control. Yet it is still unclear how to efficiently integrate load participation without introducing instabilities and violating operational constraints. In this paper we present a comprehensive load-side frequency control mechanism that can maintain the grid within operational constraints. Our controllers can rebalance supply and demand after disturbances, restore the frequency to its nominal value and preserve inter-area power flows. Furthermore, our controllers are distributed (unlike generation-side), can allocate load updates optimally, and can maintain line flows within thermal limits. We prove that such a distributed load-side control is globally asymptotically stable and illustrate its convergence with simulation.

Item Type:Book Section
Related URLs:
URLURL TypeDescription DOIArticle Paper
Mallada, Enrique0000-0003-1568-1833
Zhao, Changhong0000-0003-0539-8591
Low, Steven0000-0001-6476-3048
Additional Information:© 2014 IEEE. This work was supported by NSF NetSE grant CNS 0911041, ARPAE grant DE-AR0000226, Southern California Edison, National Science Council of Taiwan R.O.C. grant NSC 103-3113-P-008-001, and Caltech Resnick Institute.
Group:Resnick Sustainability Institute
Funding AgencyGrant Number
Southern California EdisonUNSPECIFIED
National Science Council (Taipei)NSC 103-3113-P-008-001
Resnick Sustainability InstituteUNSPECIFIED
Record Number:CaltechAUTHORS:20150203-091127023
Persistent URL:
Official Citation:Mallada, Enrique; Zhao, Changhong; Low, Steven, "Optimal load-side control for frequency regulation in smart grids," Communication, Control, and Computing (Allerton), 2014 52nd Annual Allerton Conference on , vol., no., pp.731,738, Sept. 30 2014-Oct. 3 2014 doi: 10.1109/ALLERTON.2014.7028527 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54317
Deposited By: Tony Diaz
Deposited On:04 Feb 2015 03:59
Last Modified:10 Nov 2021 20:31

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