Performance Improvement in Fuzzy Logic Controller based Grid-connected Solar Photovoltaic System with Fractional Order Notch Filter

In this article, We will discuss the procedures involved in constructing an NLMS, NLMF, and For use with a photovoltaic(PV) system that is linked to power grid. The created FONF control technique makes use of distorted load currents to estimate fundamental active constituents in a PV system that uses gating pulses to operate the voltage source inverter (VSI). Meeting the demand (active power) of the load/grid and fixing the power quality(PQ) concerns brought on by current at the connection point are only two of the numerous benefits of using this strategy to operate a solar PV system linked to the grid. Reactive power, load imbalance, and harmonic distortion are examples of power quality issues. The FONF-based regulation appears to be a form of notch filter with an integer order. Integral and differentiator terms limit integer order filters' versatility. The integrator strength of the FONF notch filter can be tweaked to fine-tune the system's response. To demonstrate the functionality of FONF-based control, for the VSC, an IGBT is paired with a dSPACE MicroLabBox to create a working model of a solar PV system that can be tested in a lab and potentially put into production (DS-1202). Experimental data collected at varying levels of solar irradiance is compared to the results of the models run with steady-state and unbalanced loads. Measuring harmonic distortion and comparing results to IEEE-519 standards.