位居20世纪对人类社会生活影响最大20项工程技术成就首位的电力系统在21世纪再次面临重大的发展。经历最近全球70年来最严重的经济危机后,面对重重经济困境,人类在21世纪的第二个十年的时点上做出了大力建设智能电网的行动。人们所说的智能电网,其实质就是传统电力系统的信息化和智能化,当 In the 20th century, the greatest impact on human social life 20 power engineering projects in the first place of power system in the 21st century once again facing significant development. After experiencing the most serious economic crisis in 70 years in the world recently, in the face of heavy economic hardships, mankind has made great efforts to build a smart grid at the second decade of the 21st century. What people call the smart grid, its essence is the traditional power system information and intelligence, when