Delay-Aware Wide-Area Control of Power Systems over Sparse Communications with Analytical Guarantees
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DibAnuChaHusTSGCompl.pdf
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Author(s)
Chakrabortty, Aranya
Hussain, Alefiya
Dibaji, SeyedMehran
Annaswamy, Anuradha M
Date Issued
January 30, 2018
Journal
forthcoming in American Control Conference 2018
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Dibaji, Seyed Mehran et al. "Delay-Aware Wide-Area Control of Power Systems over Sparse Communications with Analytical Guarantees." Forthcoming in American Control Conference (ACC), 2018.
Version
Author's final manuscript
Abstract
A distributed and sparse control strategy is proposed in this paper for wide-area power system networks. A network control design is proposed that makes use of the notion of communication sparsity and is delay-aware. Communication sparsity is imposed to reduce the cost of the network design,
and the delay-aware aspect of the control design accommodates the fact that the sensor measurements utilized may stem from a local generator, generators within an area or those from another area. The latter is addressed using the same notion of sparsity but in a virtual sense by zeroing out the gains that correspond to measurements that are yet to arrive. Both sparsity features are introduced in the control design using the well-known Geromel algorithm. The designs are verified through a simulation study
of the IEEE-39 bus, where it is shown that with 90% less communication channels, we can obtain 84% of the performance compared the case when neither of the two sparsity features is present.
Index Terms: wide-area control, sparse communication, cyberphysical
systems, delays
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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