Power Quality Standard Consideration for the Connection of Distributed Generation to MainGrid

Based on the circuit and control method of the connection of distributed generation(DG) with the main grid described,in light of the developmental status of DG in China,combining with the experiences of DG in the developed countries,the presented paper gives some suggestions on power quality problem consideration in the establishment of guideline for the connection of DG to main power system.The factors considered include voltage deviation,voltage fluctuation,power factor,load shedding,disconnection,inverse power flow,DC magnetic bias and harmonice etc.Suggestions are proposed according to the development of DG in China and with reference to the similar quidelines in the DG well developed countries.()