Title: The Development of Smart Grid and Its Key Technology
Abstract: ElectricPower Research Institute, EPRI) in 2001.In 2005 the "smart grid (Smart Grids) European technology forum" was set up in European, that risen "Smart Grids" to the strategic status of research.In 2008, the "smart grid" is defined as the accepted terminology and the title of "The Smart Grid" in the US-China clean energy cooperation organization special meeting and Sino US Green Energy Forum. [1][2]There are many forms of definition of smart grid since it was proposed internationally.State Grid Electric Power Research Institute of China State Grid Electric Power Research Institute of Chinese defines it as: the physics based on grid (smart grid China is in UHV power network as the backbone grid, strong grid of each voltage grade the coordinated development of the power grid based), new grid would be modern and advanced sensing technology, communication technology, information technology, computer technology, control technology, physical power and the formation of highly integrated.It is to fully meet user's demand for electricity and optimize the allocation of resources, ensure the power supply security, reliability and economy, meet environmental constraints, ensuring the quality of electric energy, adapt to the power market development for the purpose, to realize user reliable, economic, clean, interactive power supply and value-added services.