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Title: Distributed plug-and-play optimal generator and load control for power system frequency regulation

Abstract

A distributed control scheme, which can be implemented on generators and controllable loads in a plug-and-play manner, is proposed for power system frequency regulation. The proposed scheme is based on local measurements, local computation, and neighborhood information exchanges over a communication network with an arbitrary (but connected) topology. In the event of a sudden change in generation or load, the proposed scheme can restore the nominal frequency and the reference inter-area power flows, while minimizing the total cost of control for participating generators and loads. Power network stability under the proposed control is proved with a relatively realistic model which includes nonlinear power flow and a generic (potentially nonlinear or high-order) turbine-governor model, and further with first- and second-order turbine-governor models as special cases. Finally, in simulations, the proposed control scheme shows a comparable performance to the existing automatic generation control (AGC) when implemented only on the generator side, and demonstrates better dynamic characteristics than AGC when each scheme is implemented on both generators and controllable loads. Simulation results also show robustness of the proposed scheme to communication link failure.

Authors:
ORCiD logo; ORCiD logo; ;
Publication Date:
Research Org.:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1437850
Alternate Identifier(s):
OSTI ID: 1437564
Report Number(s):
NREL/JA-5D00-71540
Journal ID: ISSN 0142-0615; S0142061517324171; PII: S0142061517324171
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Published Article
Journal Name:
International Journal of Electrical Power and Energy Systems
Additional Journal Information:
Journal Name: International Journal of Electrical Power and Energy Systems Journal Volume: 101 Journal Issue: C; Journal ID: ISSN 0142-0615
Publisher:
Elsevier
Country of Publication:
United Kingdom
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; frequency regulation; distributed control

Citation Formats

Zhao, Changhong, Mallada, Enrique, Low, Steven H., and Bialek, Janusz. Distributed plug-and-play optimal generator and load control for power system frequency regulation. United Kingdom: N. p., 2018. Web. doi:10.1016/j.ijepes.2018.03.014.
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Zhao, Changhong, Mallada, Enrique, Low, Steven H., & Bialek, Janusz. Distributed plug-and-play optimal generator and load control for power system frequency regulation. United Kingdom. https://doi.org/10.1016/j.ijepes.2018.03.014
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Zhao, Changhong, Mallada, Enrique, Low, Steven H., and Bialek, Janusz. Mon . "Distributed plug-and-play optimal generator and load control for power system frequency regulation". United Kingdom. https://doi.org/10.1016/j.ijepes.2018.03.014.
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@article{osti_1437850,
title = {Distributed plug-and-play optimal generator and load control for power system frequency regulation},
author = {Zhao, Changhong and Mallada, Enrique and Low, Steven H. and Bialek, Janusz},
abstractNote = {A distributed control scheme, which can be implemented on generators and controllable loads in a plug-and-play manner, is proposed for power system frequency regulation. The proposed scheme is based on local measurements, local computation, and neighborhood information exchanges over a communication network with an arbitrary (but connected) topology. In the event of a sudden change in generation or load, the proposed scheme can restore the nominal frequency and the reference inter-area power flows, while minimizing the total cost of control for participating generators and loads. Power network stability under the proposed control is proved with a relatively realistic model which includes nonlinear power flow and a generic (potentially nonlinear or high-order) turbine-governor model, and further with first- and second-order turbine-governor models as special cases. Finally, in simulations, the proposed control scheme shows a comparable performance to the existing automatic generation control (AGC) when implemented only on the generator side, and demonstrates better dynamic characteristics than AGC when each scheme is implemented on both generators and controllable loads. Simulation results also show robustness of the proposed scheme to communication link failure.},
doi = {10.1016/j.ijepes.2018.03.014},
journal = {International Journal of Electrical Power and Energy Systems},
number = C,
volume = 101,
place = {United Kingdom},
year = {Mon Oct 01 00:00:00 EDT 2018},
month = {Mon Oct 01 00:00:00 EDT 2018}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1016/j.ijepes.2018.03.014
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Cited by: 19 works
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