A Novel Single Phase Grid Connected Transformer-Less Solar Micro-Inverter Topology With Power Decoupling Capability

Also Available Domains Microgrids

Project Code :TEPGPS787


The main objective of this project is to propose a single-phase grid connected transformer-less solar micro converter with power decoupling capability.


Abstract: This paper presents, the micro-inverter is operated in discontinuous conduction mode of operation for all possible operating conditions to achieve high gain as well as negligible turn on losses for the high frequency switches. In this topology the negative terminal of the PV module is shorted with the grid neutral which makes the magnitude of the leakage current flow to be zero. the power decoupling between the dc and ac sides is inherent in this topology, and it is achieved without incorporating any active power decoupling circuit. Thin film capacitors are utilized to improve the reliability of the micro-inverter. The detailed analyses of the proposed micro-inverter are carried out. The effectiveness of the proposed scheme is verified by performing detailed simulation studies. A 220 W laboratory prototype of the proposed micro-inverter is fabricated, and detailed experimental studies are carried out to confirm the viability of the proposed scheme. the simulation results can be evaluated by using MATLAB/Simulink Software.

Keywords: dc-ac conversion, DCM, grid integration, microinverter, power decoupling, solar PV, a transformer-less micro-inverter topology suitable for interfacing a 35 V, 220 W solar PV module to a single phase 220–230 V ac grid.

NOTE: Without the concern of our team, please don't submit to the college. This Abstract varies based on student requirements.

Block Diagram


Software Configuration:

Operating System       : Windows 7/8/10

Application Software: Matlab / Simulink

Hardware Configuration:

RAM                           : 8 GB

Processor                     : I3 / I5 (Mostly prefer)

Learning Outcomes

·         Introduction to Matlab/Simulink

·         What is EISPACK & LINPACK

·         How to start with MATLAB

·         About Matlab language

·         About tools & libraries

·         Application of Matlab/Simulink

·         About Matlab desktop

·         Features of Matlab/Simulink

·         Basics on Matlab/Simulink

·         Introduction to Electrical machines

·         Introduction to DC-AC converters

·         Introducing to grid

·         Introduction to Solar Power System

·         Introduction to MPPT.

·         We can learn about PV

·         Introduction to Micro Inverters

·         Project Development Skills:

o   Problem analyzing skills

o   Problem solving skills

o   Creativity and imaginary skills

o   Programming skills

o   Deployment

o   Testing skills

o   Debugging skills

o   Project presentation skills

o   Thesis writing skills

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