This paper proposes modeling and simulation of PV Micro – Grid Distribution Generation System for Smart Grid Applications. Because, Distributed Generation (DG) offers great potential in meeting future global energy needs. PV module modeling and inverter technique reviews are presented in this paper. The mathematical PV module modeling depends on Schott ASE-300-DGF PV panel with the aid of MATLAB environment. DC / AC Inverter, Three – phase Inverters, Basic Operation of PWM Inverter, Square – wave operations of DC/AC inverter, Single – phase and Full – Bridge
Converters, Three – phase Converters and some MATLAB Inverters Results are introduced. Then, it proposes a PV module when coupled to a load through DC-DC Converter to supply this resistive load with the maximum power from the PV module. Some of DC-DC converters topologies are discussed in brief with concentration on Cúk and SEPIC Converters operations. After that, the mechanism of load matching is described to give the required converter duty cycle at maximum power point (MPP). Relations in 3D figures are introduced for the most probable situations for irradiance and temperature with the corresponding PV voltage and current. Also, 3D figures for the desired duty cycle, output voltage and current of DC-DC converter to gain the maximum power to the resistive load at various irradiance and temperature values.