Voltage Support Provided by a Droop-Controlled Multifunctional Inverter
Vasquez, J.C.
Mastromauro, R.A.
Guerrero, J.M.
Liserre, M.
Dept. of Autom. Control Syst. & Comput. Eng., Tech. Univ. of Catalonia, Barcelona, Spain;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Nov. 2009
Volume: 56,
Issue: 11
On page(s): 4510-4519
ISSN: 0278-0046
INSPEC Accession Number: 10916322
Digital Object Identifier: 10.1109/TIE.2009.2015357
First Published: 2009-02-24
Current Version Published: 2009-10-09
Abstract
This paper presents a single-phase multifunctional inverter for photovoltaic (PV) systems application. The converter provides active power to local loads and injects reactive power into the grid providing voltage support at fundamental frequency. The proposed topology is controlled by means of the droop-control technique. Hence, it allows the obtaining of voltage-sag-compensation capability, endowing voltage ride-through to the system. A model and analysis of the whole system is given to properly choose the control parameters. Simulation and experimental results validate the proposed control using a 5-kVA PV converter.
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