This paper proposes a control strategy for single-phase off-grid inverter, which integrates the three clo-sed-loop control with the iterative-based RMS algorithm. The inverter circuit is modeled, and simulation experiment and prototype verification are performed on Matlab. The results show that the. . IC based method provides fast dynamics and control over fast changing insolation condition. For current-controlled PV inverters in most of the cases a PI controller with grid voltage feed-forward (VFF), but this solution exhibits two well known drawbacks: inability of the PI controller to track a. . Control strategy includes Phase Locked Loop (PLL), generation of reference current (Igref), and closed loop current controller to track the reference current Igref. Simulation was done in MATLAB-SIMULINK and results obtained are compared and analyzed. Keywords - Transformer less inverter, LCL. . losed loop control techniques for controlling the inverter working under different load or KVA ratings. The control trategy of the inverter must guarantee its output waveforms to be sinusoidal with fundamental harmonic. For this purpose, close loop current control strategies such as H∞ repetitive. .