• Ms. Kanukurthi Devi
• Mrs. K. VANITHA

This project shows a new technique for controlling the LG, LL and LLL faults by the fuzzy-integral decision fusion technique method designed to the grid connected to PV system. The method firstly constructs a criterion set which covers all types commonly used criteria for LG, LLL and LL faults. The control targets, for example, maximum power point tracking, synchronization with grid, current control, and constant decrease in yield current, are realized in single stage for high productivity and straightforward power converter topology by the fluffy controller. On this premise, it is indicated by fault qualities, paradigm in the set is individually used to do LG, LL and LLL faults analysis, and fault measure is produced from every model. The active and reactive power are constrained by utilizing dq segments of grid current. The new controller shows the strong exhibition and vigorous steadiness of the DG unit system as for the channel parameters vulnerabilities, grid impedance, grid frequency, and grid voltage just as the obscure burden elements that incorporate unequal burdens and nonlinear burdens with constant and between symphonious currents. It should comment that the neighborhood remuneration of the heaps with between symphonious current utilizing a DG unit system is first projected in this project. At that point when contrasted and the mainstream parallel corresponding thunderous control system, proposed controller offers smoother transient responses and a lower dimension of current twisting. The presentation of the projected control strategy is verified in MATLAB/SimPower Systems toolbox.

DC-link voltage control, feedback linearization (FBL), photovoltaic (PV) systems, reactive, LG LL LLL faults, fuzzy controller.

"FUZZY CONTROLLED SINGLE-STAGE CONVERTER FED PV SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 3, page no.g539-g549, March-2023, Available :http://www.jetir.org/papers/JETIR2303683.pdf

"FUZZY CONTROLLED SINGLE-STAGE CONVERTER FED PV SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 3, page no. ppg539-g549, March-2023, Available at : http://www.jetir.org/papers/JETIR2303683.pdf