·184· 北京科拉大学学报 2006年第2期 [6]Kim J S,Kim Y S,Shin J H,et al.Hao speed control of an [8】俞立.鲁棒控制—线性矩阵不等式处理方法。北京：清华 induction motor with the two-mass resonant system by LMI 大学出版社，2002 Proceedings of the 24th Annual Conference of the IEEE Indus- [9]邹家样，徐乐江.冷连轧机系统扳动控制.北京：治金工业 trial Electronics Society,Aachen,19981:1439 出版社，1998 [7]申铁龙.H控制理论及应用.北京：清华大学出版社，1996 H%o control based on LMI for electromechanical vibration of a rolling mill main drive system ZHANG Ruicheng,TONG Chaonan,LI Boqun Information Engineering School,University of Science and Technology Beijing,Beijing 100083,China ABSTRACT In order to suppress electromechanical vibration,to dynamically restrain the disturbance of a main drive system and not to induce static error by the disturbance,a state space model of two-degree-of- freedom systems was built based on model matching techniques for the main drive system of a rolling mill. The design of an electromechanical vibration controller was converted into a standard Ho control problem. Then an output feedback Ho controller was obtained by using LMI approach so as to guarantee the robust- ness of the main drive system of a rolling mill.Simulated results showed that the controller effectively im- proved the performance of command following,suppressed electromechanical vibration,and reduced the dy- namic speed fall caused by load disturbance. KEY WORDS rolling mill;electromechanical vibration;linear matrix inequality (LMI);model match- ing;controller北 京 科 技 大 学 学 报 。 ‘ 年第 期 〔 【 俞立 鲁棒控制－ 线性矩 阵不等式处理方法 北京 清华 大学 出版社 ， 〔 」 邹家祥 ， 徐乐江 冷连 轧机 系统振动控制 北京 冶金工业 出版社 ， 〕 ， ， ， 叩 八。 山 反 习 ， 〕 ， ， 申铁龙 控制理论及应用 北京 清华大学 出版社 ， ， ， 姐 吃 ， 盯 呢 ， 昭 ， ， 邓 ， 一 邓 飞 眼 即 雌 南加 ，