Dr. Songyi Dian received his Bachelor and MS degrees of Control Engineering from Sichuan University, China in 1996 and 2002, respectively. He received his PhD degree in Nanomechanics Engineering from Tohoku University, Japan in 2009. He is currently an associate professor in the College of Electrical Engineering and Information Technology of Sichuan University. Research interests: Control Theory and Strategies, Precision motion control and Intelligent Robots，Power Electronics System and its Control.