Grid-Connected Boost-Half-Bridge Photovoltaic Micro-inverter System Using MPPT with Fuzzy Controller

  B.PRIYADHARSHINI,  B.KARTHIK

This project presents a grid-connected boost half- bridge photovoltaic (PV) micro inverter system and its control implementations. A full-bridge pulse width-modulated inverter is cascaded and injects synchronized sinusoidal current to the grid. Solar Photovoltaic (PV) exploitation is a significant renewable energy source in our world. The energy converted directly from sunlight through PV panel is not stable due to different solar intensity. Maximum power point tracking (MPPT) is used extract maximum power from the solar panel, high-performance soft computing techniques like fuzzy logic controller can be used as a MPPT. In this paper, a fuzzy logic control (FLC) is proposed to monitor and control the MPPT for a photovoltaic (PV) system. The proposed technique uses a FLC for the enhancement of these Maximum Power Point (MPP) trackers are designed. The step-up transformer and rectifier are also used in this method. Dynamic stiffness is achieved when load or solar irradiance is changing rapidly. Variable step size is adopted such that fast tracking speed and high MPPT efficiency are both obtained. Simulation and experimental results are provided to verify the validity and performance of the circuit operations and MPPT algorithm.

Keywords- PV panel, Inverter, Fuzzy, MPPT, Resonant converter, Voltage step up, Rectifier.

Unique Identification Number - IJEDR1702133
Page Number(s) - 800-805
Pubished in - Volume 5 | Issue 2 | April 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  B.PRIYADHARSHINI,  B.KARTHIK,   "Grid-Connected Boost-Half-Bridge Photovoltaic Micro-inverter System Using MPPT with Fuzzy Controller", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 2, pp.800-805, April 2017, Available at :http://www.ijedr.org/papers/IJEDR1702133.pdf