Prof. Yusheng Xue is an academician of Chinese Academy of Engineering and the honorary president of State Grid Electric Power Research Institute, China. He is the Chairman of Technical Committee of Chinese National Committee of CIGRE (International Council on Large Electric Systems) and a member of the Board of Directors of Chinese Society for Electrical Engineering. Dr. Xue holds the positions of adjunct professor in several universities in China. He has made significant contributions in stability and automation theory of power system. As the inventor of the Quantitative Stability Analysis Method of Non-autonomous Motion Systems, Dr. Xue promotes the application and industrialization of an interruption defense system in eighty percent of power systems in China. He is the recipient of several National Technology Invention Awards and National Science and Technology Progress Awards in China. He has also been awarded a Chinese patent gold medal, a Chinese excellent patent award, a first prize award of the national science technology books and a nominee for the national book award of China. Dr. Yusheng Xue is a member of the International Advisory Committee of the Power and Energy Reliability Research Center of Chongqing University.