TITLE:
Inverter Power Stage Connected with PV-Grid
AUTHORS:
K. Kirubasankar, Dr. A. Senthil Kumar
KEYWORDS:
PV-Grid, Maximum Power Point Tracking, Inverter Power Stage, Converter
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.13,
November
16,
2016
ABSTRACT: This paper focuses on the
design of the inverter power stage connected with PV-grid which supports the
contrived PV system. The increased number of grid connected photovoltaic (PV)
inverters gave rise to problems concerning the stability and safety of the
utility grid, as well as power quality issues. The proposed systems can overcome these issues and
improve standard regulation methods for gird connected PV inverter. The maximum
available voltage in the PV string is tracked by the power stage which has been
planned and designed in such a way. The tracked voltage is boosted then. The
important components to voltage source inverter (VSI) are boost inductor and
input capacitor which are calculated. To get a clear sinusoidal output phase
voltage of 230 V from
a DC capacitance bus projected to deal with 400 V, the important inverter
stage parameters have been planned and modeled in Mat lab. Each block stage of
the converter is easily understandable by the Simlink of the dual stage DC-AC
converter explanation. The control schemes which have been proposed would
compromise with the inverter power stage which forms the neat grid system. The
existing renewable energy sources in the laboratory are integrated by the
proposed control.