中文摘要：

Xiangjie LIU received the Ph.D. de- gree in electrical and electronic engineering from the Research Center of Automation, Northeastern University, Shenyang, China, in 1997. He subsequently held a postdoctoral po- sition with the China Electric Power Re- search Institute （CEPRI）, Beijing, China, until 1999. He has been an Associate Pro- fessor in CEPRI since 1999. He was a Research Associate with the University of Hong Kong, and a Professor with National University of Mex- ico. He is now a Professor with the Department of Automation, North China Electric Power University, Beijing, China. His re- search interests include fuzzy control, neural networks, model predictive control with its application in industrial processes. Prof. Liu is a member of Technical Committee on Control Theory, a member of Technical Committee on Process Control, Chinese Association of Automation, an editor of Chinese Jour- nal of Control Engineering and an editor of Chinese Journal of Electric Power Automation Equipment. He has been in Program for New Century Excellent Talents in University since 2006. E-mail： liuxj@ncepu.edu.cn Chengcheng Wang is a master stu- dent in the Department of Automation, North China Electric Power University （NCEPU）. She received the B.S. degree in automation in 2008, from Department of Automation, NCEPU. Her main research interest is sliding mode control of wind tur- bine systems. E-mail： wangcc@ncepu.edu.cn Yanzhen Hart received the B.S. degree in automation in 2005 from Qingdao Uni- versity of Science and Technology, Qing- dao, China, and the M.S. degree in au- tomatic control in 2008, from Shandong University, Jinan, China. He is currently working toward the Ph.D. degree in au- tomatic control at North China Electric Power University, Beijing, China. Now he also works as an Associate Professor in Shandong Jiaotong University, Jinan,China. His research interests include modeling, optimization, and sliding mode control of power plants. Corresponding author of this paper. E-mail： hyz125@163.com