Harmonic compensation in distributed generation based micro-grid using droop control technique

Increase in demand for electric power, industrial growth, environmental pollution etc. have led to think for alternative energy resources based on distributed generations. The distributed generation (DG) considered in our work includes fuel cells, photovoltaic systems, wind energy systems etc. The micro-grid formulation by integrating various DG with the conventional power system through power electronic converters showing better performance and reliability. Again, due to increase of power electronic devices, many of the loads within micro-grid are nonlinear in nature, so, the harmonic pollution is caused due to this. In this paper, a novel strategy for harmonic compensation in micro-grid based on droop control of interface converters is proposed. The operation principle is explained in detail. The simulation results performed by MATLAB/SIMULINK shows the harmonic damping capability of the proposed strategy.