000253266 001__ 253266
000253266 005__ 20190528085556.0
000253266 037__ $$aARTICLE
000253266 245__ $$aA Passivity-Based Approach to Voltage Stabilization in DC Microgrids with ZIP loads
000253266 260__ $$c2018
000253266 269__ $$a2018
000253266 336__ $$aJournal Articles
000253266 520__ $$aWe consider the application of passivity theory to the problem of voltage stabilization in DC microgrids, which are composed of distributed generation units, dynamic RLC lines, and nonlinear ZIP (constant impedance, constant current, and constant power) loads. To this aim, we rst provide a novel result on stable interconnection of multiple passive systems and later consider its applications to microgrids. More specically, we consider decentralized multivariable PI controllers proposed in [27], and show that they passivate the generation units and the loads under certain conditions. To prove voltage stability in the closed-loop microgrid, we exploit properties of interconnection, passivity of individual components, and LaSalle's invariance theorem. Moreover, we provide explicit inequalities on control gains to design these stabilizing controllers. Control synthesis requires only the knowledge of local parameters and is always feasible allowing removal and addition of DGUs in a plug-n-play fashion. Theoretical results are backed up by simulations in PSCAD.
000253266 6531_ $$aPassivity-based control, Decentralized control, DC microgrids, Voltage stability, Nonlinear stability analysis.
000253266 700__ $$aNahata, Pulkit$$0250849
000253266 700__ $$aSoloperto, Raffaele
000253266 700__ $$aTucci, Michele$$0250478
000253266 700__ $$aMartinelli, Andrea
000253266 700__ $$aFerrari Trecate, Giancarlo$$0250258
000253266 773__ $$tUnder review
000253266 8560_ $$fpulkit.nahata@epfl.ch
000253266 8564_ $$uhttps://infoscience.epfl.ch/record/253266/files/root2.pdf$$s860641
000253266 909C0 $$xU13313$$mgiancarlo.ferraritrecate@epfl.ch$$pSCI-STI-GFT$$0252594
000253266 909CO $$qGLOBAL_SET$$pSTI$$particle$$ooai:infoscience.epfl.ch:253266
000253266 960__ $$apulkit.nahata@epfl.ch
000253266 961__ $$alaurence.gauvin@epfl.ch
000253266 973__ $$rREVIEWED$$sSUBMITTED$$aEPFL
000253266 980__ $$aARTICLE
000253266 981__ $$aoverwrite