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Amirhossein Abolmasoumi

Amirhossein Abolmasoumi

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0001-9739-1340
Education: PhD.
ScopusId: 26664422200
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Enhanced Control Scheme for a Three-Phase Grid-Connected PV Inverter under Unbalanced Fault Conditions
Type
JournalPaper
Keywords
current control; frequency locked-loop; power control; power oscillation; unbalanced grid voltage
Year
2020
Journal Electronics
DOI
Researchers Aliasghar Ghadimi ، Saeid Abbasi ، Amirhossein Abolmasoumi ، Mohammad Reza Miveh ، Francisco Jurado

Abstract

This paper presents an improved control strategy to cancel the double grid frequency oscillations in the active power, reactive power, and DC-link voltage of a three-phase grid-connected photovoltaic (PV) system under unbalanced grid condition. To achieve these goals, an enhanced positive–negative-sequence control (PNSC) to remove oscillations of active power and an instantaneous active–reactive control (IARC) to mitigate the fluctuations of active and reactive power, simultaneously, are suggested. These methods are also e ective to reduce the oscillations of the DC-link voltage. To track the desired unbalanced or harmonic reference currents, improved proportional resonant (PR) current controllers have been designed using the Bode frequency analysis. Simulation studies are carried out via Matlab/Simulink® software to verify the e ectiveness of the suggested control strategies.