This article proposes a fuzzy-PI controller for controlling the DC link voltage of a stand-Alone microgrid test system. Within this work, the mathematical modelling of PV is determined to assess the P-V and I-V characteristics of PV. The MPPT controller is utilized Perturb Observe algorithm to generate the maximum power of PV. The proposed controller is simulated for the five various operating cases. The results which are obtained by the proposed controller is compared with the existing method.