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Frequency-Based Load Control in Power Systems

Zhao, Changhong and Topcu, Ufuk and Low, Steven H. (2012) Frequency-Based Load Control in Power Systems. In: American Control Conference (ACC), 2012. IEEE , pp. 4423-4430. ISBN 978-1-4577-1095-7. https://resolver.caltech.edu/CaltechAUTHORS:20121003-154738717

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Abstract

Maintaining demand-supply balance and regulating frequency are key issues in power system control. Conventional approaches focus on adjusting the generation so that it follows the load. However, relying on solely regulating generation is inefficient, especially for power systems where contingencies like a sudden loss in generation or a sudden change in load frequently occur. We present a frequency-based load control scheme for demand-supply balancing and frequency regulation. We formulate a load control optimization problem which aims to balance the change in load with the change in supply while minimizing the overall end-use disutility. By studying the power system model that characterizes the frequency response to real power imbalance between demand and supply, we design decentralized synchronous and asynchronous algorithms which take advantage of local frequency measurements to solve the load control problem. Case studies show that the proposed load control scheme is capable of relatively quickly balancing the power and restoring the frequency under generation-loss like contingencies, even when users only have the knowledge of a simplified system model instead of an accurate one.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/ACC.2012.6315283DOIArticle
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6315283&isnumber=6314593PublisherArticle
ORCID:
AuthorORCID
Zhao, Changhong0000-0003-0539-8591
Low, Steven H.0000-0001-6476-3048
Additional Information:© 2012 AACC. Date of Current Version: 01 October 2012. This work is supported by NSF NetSE grants CNS 0911041, Southern California Edison (SCE), Okawa Foundation, and Boeing Corporation.
Funders:
Funding AgencyGrant Number
NSF NetSECNS-0911041
Southern California EdisonUNSPECIFIED
Okawa FoundationUNSPECIFIED
Boeing CorporationUNSPECIFIED
Subject Keywords:Power systems, Decentralized control, Optimization
DOI:10.1109/ACC.2012.6315283
Record Number:CaltechAUTHORS:20121003-154738717
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20121003-154738717
Official Citation:Zhao, Changhong; Topcu, Ufuk; Low, Steven H.; , "Frequency-based load control in power systems," American Control Conference (ACC), 2012 , vol., no., pp.4423-4430, 27-29 June 2012 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6315283&isnumber=6314593
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34680
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:04 Oct 2012 19:23
Last Modified:09 Nov 2021 23:09

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