Publication: Control strategy of Grid-Connected PV Inverters in Microgrid with Nonlinear Operating Conditions
Date
2018
Authors
Naderipour A.
Abdul-Malek Z.
Abohamzeh E.
Ramachandaramurthy V.K.
Miveh M.R.
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
This paper proposes a current control strategy for a Photovoltaic (PV) system in three-phase three-wire grid-connected microgrids under unbalanced and nonlinear load conditions. The proposed control strategy comprise of a multi-loop control technique to provide balanced output current, multi-resonant harmonic compensator to reduce the Total Harmonic Distortion (THD) and a droop-based control scheme to achieve accurate power sharing. Additionally, the current THDs were reduced from above 17.51% to lower than 3% with the proposed control strategy under nonlinear load conditions. The effectiveness of the proposed control strategy was proven via simulation using MATLAB/Simulink. � 2018 IEEE.
Description
Electric current control; Electric inverters; MATLAB; Current control strategy; Grid connected inverters; Grid-connected PV inverters; Harmonics; Micro grid; Photovoltaic; Three-phase three-wire; Total harmonic distortion (THD); Harmonic analysis