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Distributed Frequency Control with Operational Constraints, Part II: Network Power Balance

Wang, Zhaojian and Liu, Feng and Low, Steven and Zhao, Changhong and Mei, Shengwei (2018) Distributed Frequency Control with Operational Constraints, Part II: Network Power Balance. In: 2018 IEEE Power & Energy Society General Meeting (PESGM). IEEE , p. 1. ISBN 9781538677032. http://resolver.caltech.edu/CaltechAUTHORS:20190104-142158857

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Abstract

In Part I of this paper we propose a decentralized optimal frequency control of multi-area power system with operational constraints, where the tie-line powers remain unchanged in the steady state and the power mismatch is balanced within individual control areas. In Part II of the paper, we propose a distributed controller for optimal frequency control in the network power balance case, where the power mismatch is balanced over the whole system. With the proposed controller, the tie-line powers remain within the acceptable range at equilibrium, while the regulation capacity constraints are satisfied both at equilibrium and during transient. It is revealed that the closed-loop system with the proposed controller carries out primal-dual updates with saturation for solving an associated optimization problem. To cope with discontinuous dynamics of the closed-loop system, we deploy the invariance principle for nonpathological Lyapunov function to prove its asymptotic stability. Simulation results are provided to show the effectiveness of our controller.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/pesgm.2018.8586037DOIArticle
http://resolver.caltech.edu/CaltechAUTHORS:20170726-155035857Related ItemJournal Article
ORCID:
AuthorORCID
Wang, Zhaojian0000-0002-4998-6339
Liu, Feng0000-0003-2279-2558
Low, Steven0000-0001-6476-3048
Zhao, Changhong0000-0003-0539-8591
Mei, Shengwei0000-0002-2757-5977
Additional Information:© 2018 IEEE.
Record Number:CaltechAUTHORS:20190104-142158857
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190104-142158857
Official Citation:Z. Wang, F. Liu, S. Low, C. Zhao and S. Mei, "Distributed Frequency Control with Operational Constraints, Part II: Network Power Balance," 2018 IEEE Power & Energy Society General Meeting (PESGM), Portland, OR, USA, 2018, pp. 1-1. doi: 10.1109/PESGM.2018.8586037
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92096
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Jan 2019 23:16
Last Modified:04 Jan 2019 23:16

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