Power System Security and Stability in Smart Grid

With the superior performance and great role in promoting the world's economy,smart grid has become the new trend of electric power development in the world.It is consid-ered as the major scientific and technological innovation for the power system in the 21st century.The emergence of the smart grid will have great influence on the power system security and stability analysis and control.This paper firstly describes the development,aim and characteristics of smart grid in China,discusses the security and stability analysis and control of the power system,intelligent dispatching and control under the environment of smart grid and new issues caused by the large-scaled integration of wind power and distributed generation and finally puts forward the corresponding countermeasures.