控制与决策
控製與決策
공제여결책
CONTROL AND DECISION
2013年
2期
211-216
,共6页
液压伺服位置系统%动态输出反馈%输入饱和%鲁棒??∞性能
液壓伺服位置繫統%動態輸齣反饋%輸入飽和%魯棒??∞性能
액압사복위치계통%동태수출반궤%수입포화%로봉??∞성능
hydraulic servo position system%dynamic output feedback%input saturation%robust??∞performance
针对具有状态不可测、参数不确定和输入饱和的轧机液压伺服位置系统,提出一种基于anti-windup的抗饱和鲁棒动态输出反馈控制算法.首先,应用Finsler引理,将闭环系统稳定的充分条件转化为LMI条件,并解得控制器参数矩阵;然后,综合考虑系统的干扰抑制能力和稳定域大小,求解优化问题,得到anti-windup增益矩阵.可以证明,所设计的控制器能够保证闭环系统一致有界稳定,并具有鲁棒??∞性能.将所提出的算法应用于某650 mm可逆轧机液压伺服位置系统中进行仿真,其结果验证了所提出算法的有效性.
針對具有狀態不可測、參數不確定和輸入飽和的軋機液壓伺服位置繫統,提齣一種基于anti-windup的抗飽和魯棒動態輸齣反饋控製算法.首先,應用Finsler引理,將閉環繫統穩定的充分條件轉化為LMI條件,併解得控製器參數矩陣;然後,綜閤攷慮繫統的榦擾抑製能力和穩定域大小,求解優化問題,得到anti-windup增益矩陣.可以證明,所設計的控製器能夠保證閉環繫統一緻有界穩定,併具有魯棒??∞性能.將所提齣的算法應用于某650 mm可逆軋機液壓伺服位置繫統中進行倣真,其結果驗證瞭所提齣算法的有效性.
침대구유상태불가측、삼수불학정화수입포화적알궤액압사복위치계통,제출일충기우anti-windup적항포화로봉동태수출반궤공제산법.수선,응용Finsler인리,장폐배계통은정적충분조건전화위LMI조건,병해득공제기삼수구진;연후,종합고필계통적간우억제능력화은정역대소,구해우화문제,득도anti-windup증익구진.가이증명,소설계적공제기능구보증폐배계통일치유계은정,병구유로봉??∞성능.장소제출적산법응용우모650 mm가역알궤액압사복위치계통중진행방진,기결과험증료소제출산법적유효성.
An anti-windup-based robust dynamic output feedback control algorithm is presented for hydraulic servo position system with unmeasurable states, uncertain parameters and input saturation in a rolling mill. Firstly, a sufficient condition of stability can be transformed into a linear matrix inequality(LMI) condition by using Finsler’s lemma, and the controller parameter matrices are obtained by solving LMIs; Secondly, by compromising the disturbance attenuation and stability region, the anti-windup matrix is obtained by solving a convex optimization problem. It can be proved that the proposed method can guarantee the closed-loop system is uniformly bounded stable and possesses robust??∞performance. Finally, a simulation is carried out on the hydraulic servo position system of 650 mm reversing cold-strip rolling mill, the simulation results show the validity of the proposed algorithm.