@article{Schiffer:2014:10.1016/j.automatica.2014.08.009,
author = {Schiffer, J and Ortega, R and Astolfi, A and Raisch, J and Sezi, T},
doi = {10.1016/j.automatica.2014.08.009},
journal = {Automatica},
pages = {2457--2469},
title = {Conditions for stability of droop-controlled inverter-based microgrids},
url = {http://dx.doi.org/10.1016/j.automatica.2014.08.009},
volume = {50},
year = {2014}
}

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TY  - JOUR
AB  - 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.
AU  - Schiffer,J
AU  - Ortega,R
AU  - Astolfi,A
AU  - Raisch,J
AU  - Sezi,T
DO  - 10.1016/j.automatica.2014.08.009
EP  - 2469
PY  - 2014///
SN  - 0005-1098
SP  - 2457
TI  - Conditions for stability of droop-controlled inverter-based microgrids
T2  - Automatica
UR  - http://dx.doi.org/10.1016/j.automatica.2014.08.009
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000344207300003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
VL  - 50
ER  - 

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