In this paper, a management theme based on improvement in an exceedingly generalized integrator is implemented on a three-part single-stage grid-tied solar photovoltaic system with the distribution static compensator capabilities beneath grid abnormal conditions of voltage distortion and voltage unbalance. The photovoltaic voltage-supply converter system compensating for the reactive power consumed by nonlinear load at point of common coupling provides load balancing and mitigates harmonics. The proposed multiple-improved-notch-filter-primarily based quadrature signal generator control approach extracts the load current basic part, independent of the grid voltage. This control has higher dc offset and harmonics element rejection capability compared to a conventional second-order generalized integrator algorithm. The perturb and observe-primarily based maximum power point tracking algorithm is applied for the extraction of most power from the photovoltaic array. The system is analyzed beneath totally different abnormal conditions of voltage distortions, voltages unbalance, voltage swell, voltage sag, load currents unbalance, and insolation modification on a prototype developed in the laboratory. The system performance is found to be satisfactory, among limits as described in an IEEE-519 commonplace whereas feeding active power to distribution network and connected masses.