Grid Connected PV System using Incremental Conductance MPPT Technique

Abstract

Abstract: Solar system is an Eco-friendly system which helps in production of abundant energy with PV arrays. PV System comes under the category of distributed energy. This system helps the existing system to meet the power demand at some point of time. In this paper PV Standalone System is used and is interfaced with Power Grid which is a three-phase system. Observation on Pertub and Observe (P&O) MPPT technique and Incremental Conductance MPPT technique has been done to know the best MPPT technique for tracking maximum power from the PV System. In both the techniques boost converter is used to provide Duty Cycle for switching pulses generation. Inverter is used with 2-level configuration for DC to AC Power Conversion along with pulse width modulation technique. For synchronizing PV to Grid, Phase Lock Loop (PLL) technique is implemented. Active and Reactive Power is Supplied to the load depending on demand by the Control Circuit through PV System. P&O method and Incremental Conductance method is simulated in MATLAB and results of both the methods are used for analysis.  

 Index Terms: P&O, MPPT, PLL, PV