6KELLY K. Out of control:the new biology of machines,social systems,and the economic world[M~. Boston,USA:Addison Wesley Publishing Company, 1994:1-521.
7LITOS Strategic Communication. The smart grid:an introduction [RI. Washington,DC,USA:Department of Energy,2008.
8US Department of Energy. GRID 2030[R]. Washington,DC,USA: Department of Energy,2003.
9US Department of Energy. Smart grid system report[R]. Washing- ton, DC, USA : Department of Energy, 2009.
