Schiffer, J, Ortega, R, Astolfi, A et al. (2 more authors) (2014) Conditions for stability of droop-controlled inverter-based microgrids. AUTOMATICA, 50 (10). pp. 2457-2469. ISSN 0005-1098
Abstract
We consider the problem of stability analysis for droop-controlled inverter-based microgrids with meshed topologies. The inverter models include variable frequencies as well as voltage amplitudes. Conditions on the tuning gains and setpoints for frequency and voltage stability, together with desired active power sharing, are derived in the paper. First, we prove that for all practical choices of these parameters global boundedness of trajectories is ensured. Subsequently, assuming the microgrid is lossless, a port-Hamiltonian description is derived, from which sufficient conditions for stability are given. Finally, we propose for generic lossy microgrids a design criterion for the controller gains and setpoints such that a desired steady-state active power distribution is achieved. The analysis is validated via simulation on a microgrid based on the CIGRE (Conseil International des Grands Réseaux Electriques) benchmark medium voltage distribution network.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2014, Elsevier Ltd. This is an author produced version of a paper published in Automatica. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Microgrid control; Microgrid stability; Smart grid applications; Inverters; Droop control; Port-Hamiltonian systems; Power sharing |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Mar 2016 09:48 |
Last Modified: | 16 Jan 2018 13:52 |
Published Version: | http://dx.doi.org/10.1016/j.automatica.2014.08.009 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.automatica.2014.08.009 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:92371 |