陕西师范大学学报:自然科学版
陝西師範大學學報:自然科學版
협서사범대학학보:자연과학판
Journal of Shaanxi Normal University: Nat Sci Ed
2012年
3期
1-5
,共5页
不确定广义系统%终端滑模控制%有限时间收敛%Liapunov函数
不確定廣義繫統%終耑滑模控製%有限時間收斂%Liapunov函數
불학정엄의계통%종단활모공제%유한시간수렴%Liapunov함수
uncertain singular system%terminal sliding mode control%finite-time convergence%Liapunov function
研究了一类不确定广义系统的有限时间终端滑模控制问题.通过非奇异线性变换将不确定广义系统转换成受限等价形式,利用Liapunov函数的方法,提出一种有限时间终端滑模控制策略,给出相应的终端滑模超曲面和终端滑模控制律,得闭环系统渐近稳定,现了滑模运动,保证了在滑模面上系统状态变量在有限时间内到达平衡点.给出了相应的数值算例,说明了设计的可行性和有效性.
研究瞭一類不確定廣義繫統的有限時間終耑滑模控製問題.通過非奇異線性變換將不確定廣義繫統轉換成受限等價形式,利用Liapunov函數的方法,提齣一種有限時間終耑滑模控製策略,給齣相應的終耑滑模超麯麵和終耑滑模控製律,得閉環繫統漸近穩定,現瞭滑模運動,保證瞭在滑模麵上繫統狀態變量在有限時間內到達平衡點.給齣瞭相應的數值算例,說明瞭設計的可行性和有效性.
연구료일류불학정엄의계통적유한시간종단활모공제문제.통과비기이선성변환장불학정엄의계통전환성수한등개형식,이용Liapunov함수적방법,제출일충유한시간종단활모공제책략,급출상응적종단활모초곡면화종단활모공제률,득폐배계통점근은정,현료활모운동,보증료재활모면상계통상태변량재유한시간내도체평형점.급출료상응적수치산례,설명료설계적가행성화유효성.
The finite-time terminal sliding mode control for a class of uncertain singular systems is studied. The uncertain singular systems are transformed into restricted equivalent forms by a nonsingular linear transformation. And then by the method of Liapunov function, a finite-time terminal sliding mode control strategy is proposed. A terminal sliding mode hypersurface and a controller are given correspondingly such that the asymptotic stability of the closed-loop system is guaranteed, the motion of sliding mode is realized, and the system state variables can converge to the equilibrium point in finite time. Finally, a numerical example is presented to illustrate the feasibility and effectiveness of the design.