gn of the interconnection interface model is scalable , technology independent and flexible toРmeet the needs of interconnection between different distributed generation units and microgrid.Р This work is supported by National Natural Science Foundation of China ( No. 50777059 ) and the National HighРTechnology Research and Development Program of China (863 Program) (No. 2007AA05Z242) .РРKey words : distributed generation ; microgrid ; modular ; information interface ; power interface ; plug and playРР — 59 —РР © 1994-2010 China Academic Journal Electronic Publishing House. All rights reserved. http://www.cnki.net