Corresponding author. Pei Cheng was born in 1982. She received the Ph.D. degree in systems engineering form South China University of Technology, China in 2011. She is currently a lecturer at School of Mathematical Science, Anhui University, China. Her research interests include stability and control of impulsive stochastic systems. E-mail:chengpei_pi@ yahoo.com.cn Feiqi Deng was born in 1961. He recieved the Ph.D. degree in control theory and control engineeing from South China University of Technology, China in 1997. He is currently a professor and director for Ph.D. student at School of Automation Science and Engineering, South China University of Technology. His current research interests include system engineering, control and control of stochastic systems. E-mail:aufqdeng @ scut.edu.cn Yunjian Peng was born in 1974. He recieved the Ph.D. degree in control theory and control engi- neering from South China University of Technology, China in 2007. He is currently a lecturer at School of Automation Science and Engineering, South China University of Technology. His current research interests include system engineering, stability and control of stochastic power systems. E-mail:pengyj @ scut.edu.cn