Exponential stability and local ISS for DC networks

Title: Exponential stability and local ISS for DC networks
Creator: Ferguson, Joel; Cucuzzella, Michele; Scherpen, Jacquelien M. A.
Relation: IEEE Control Systems Letters Vol. 5, Issue 3, p. 893-898
Publisher Link: http://dx.doi.org/10.1109/LCSYS.2020.3007222
Publisher: Institute of Electrical and Electronics Engineers
Resource Type: journal article
Date: 2021
Description: In this letter, we consider the problem of regulating the voltage of an islanded Direct Current (DC) network subject to (i) unknown ZIP-loads, i.e., nonlinear loads with the parallel combination of constant impedance (Z), current (I) and power (P) components, and (ii) unknown time-varying disturbances. Using the port-Hamiltonian framework, two decentralized passivity-based control schemes are designed. It is shown that, using the proposed controllers, the desired equilibrium is exponentially stable and local input-to-state stable (LISS) with respect to unknown time-varying disturbances.
Subject: power systems; distributed control; stability of nonlinear systems; Lyapunov methods
Identifier: http://hdl.handle.net/1959.13/1423671
Identifier: uon:37962
Identifier: ISSN:2475-1456
Language: eng
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