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Design and Analysis of a Three-Phase Grid-Connected Solar PV Inverter with Proportional-Integral Controller

In detail, the design and analysis of a three-phase grid-connected PV electrical converter are well discussed in this paper. Inverter provides DC power to AC power and it's helpful in powering electronic and electrical instrumentation rated at the ac mains voltage. Before developing the inverter, a mathematical model for the PV system let alone proportional-integral controller and perturbs and observe MPPT formula were designed to access the varied characteristics of the PV module. Considering the implementation space of this paper finding, a PV system is presently the foremost reliable energy supply to deal with the energy crisis in Liberia. Liberia's PV power offers high potential to stimulate economic progression. The last section of this paper presents the results of the integrated system that enables the readers to grasp the varied conditions that were thought-about throughout this research analysis.