Our paper on robust scale-free synthesis for frequency regulation in power systems [1] has been published in the IEEE Transactions on Control of Network Systems.
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R. Pates and E. Mallada, “Robust Scale Free Synthesis for Frequency Regulation in Power Systems,” IEEE Transactions on Control of Network Systems, vol. 6, iss. 3, pp. 1174-1184, 2019. [Bibtex] [Abstract] [Download PDF]
This paper develops a framework for power system stability analysis, that allows for the decentralised design of frequency controllers. The method builds on a novel decentralised stability criterion, expressed as a positive real requirement, that depends only on the dynamics of the components at each individual bus, and the aggregate susceptance of the transmission lines connected to it. The criterion is both robust to network uncertainties as well as heterogeneous network components, and it can be verified using several standard frequency response, state space, and circuit theory analysis tools. Moreover, it allows to formulate a scale free synthesis problem, that depends on individual bus dynamics and leverages tools from Hinf optimal control. Notably, unlike similar passivity methods, our framework certifies the stability of several existing (non-passive) power system control schemes and allows to study robustness with respect to delays.
@article{pm2019tcns,
abstract = {This paper develops a framework for power system stability analysis, that allows for the decentralised design of frequency controllers. The method builds on a novel decentralised stability criterion, expressed as a positive real requirement, that depends only on the dynamics of the components at each individual bus, and the aggregate susceptance of the transmission lines connected to it. The criterion is both robust to network uncertainties as well as heterogeneous network components, and it can be verified using several standard frequency response, state space, and circuit theory analysis tools. Moreover, it allows to formulate a scale free synthesis problem, that depends on individual bus dynamics and leverages tools from Hinf optimal control. Notably, unlike similar passivity methods, our framework certifies the stability of several existing (non-passive) power system control schemes and allows to study robustness with respect to delays.},
author = {Pates, Richard and Mallada, Enrique},
bdsk-url-3 = {https://mallada.ece.jhu.edu/pubs/2019-TCNS-PM.pdf},
bdsk-url-4 = {http://dx.doi.org/10.1109/TCNS.2019.2922503},
doi = {10.1109/TCNS.2019.2922503},
grants = {CPS:1544771, EPCN-1711188, AMPS-1736448, CAREER-1752362},
journal = {IEEE Transactions on Control of Network Systems},
keywords = {Network Control; Power Networks},
month = {9},
number = {3},
pages = {1174-1184},
title = {Robust Scale Free Synthesis for Frequency Regulation in Power Systems},
url = {https://mallada.ece.jhu.edu/pubs/2019-TCNS-PM.pdf},
volume = {6},
year = {2019}
}