Open AccessSingle‐phase single‐stage multifunctional grid interfaced solar photo‐voltaic system under abnormal grid conditions
Author(s) -
Jain Chinmay,
Singh Bhim
Publication year - 2015
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2014.0533
Subject(s) - maximum power point tracking , photovoltaic system , voltage sag , total harmonic distortion , control theory (sociology) , controller (irrigation) , harmonics , grid , grid connected photovoltaic power system , voltage , power factor , compensation (psychology) , electronic engineering , engineering , computer science , electrical engineering , inverter , power quality , geometry , mathematics , biology , psychology , agronomy , control (management) , artificial intelligence , psychoanalysis
This study deals with a single‐phase single‐stage multifunctional grid interfaced solar photo‐voltaic (SPV) system. The proposed SPV system is multifunctional as it has MPPT (maximum power point tracking) and it provides harmonics elimination, reactive power compensation and feeding SPV energy into the grid at unity power factor. The PV array is connected at the DC link of voltage source converter. The MPPT controller estimates reference PV voltage and a proportional integral controller is used to maintain the PV string voltage to the reference value. Feed‐forward terms are used for SPV array and load components for fast dynamic response. The performance of the system is analysed under abnormal grid (sudden sag and swell) conditions. Simulation studies are performed on MATLAB‐based platform. Simulation results are verified experimentally on a developed SPV system. Under steady‐state operating conditions, the total harmonic distortion of grid voltage and currents are found well under IEEE‐519 standard. A wide range of simulation and experimental results are presented to demonstrate all the features of the proposed SPV system.