Abstract: Unbalanced,nonlinear or mixed loads are the main factors which affect the output voltage quality of the micro-source inverter. A new control strategy with the 5th,7th harmonics compensation and negative sequence components compensation was proposed,by which the good output voltage quality would be obtained when micro-source inverter operates with local balanced load,unbalanced load,nonlinear load or mixed load in stand-alone mode. The scheme of the control strategy was deduced in detail. Simulation and experiment results show the effective of the proposed control strategy.