Further refinement on LMI-based digital redesign: Delta-operator approach

被引:33
作者
Lee, Ho Jae [1 ]
Park, Jin Bae
Joo, Young Hoon
机构
[1] Inha Univ, Dept Elect Engn, Inchon 402751, South Korea
[2] Yonsei Univ, Dept Elect Engn & Elect, Seoul 120749, South Korea
[3] Kunsan Natl Univ, Sch Elect & Informat Engn, Kunsan 573701, Chonbuk, South Korea
关键词
delta-operator; digital redesign; linear matrix inequality; performance recovery; stability;
D O I
10.1109/TCSII.2006.870550
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper sharpens the recently developed linear-matrix-inequality-based digital redesign (LMI-based DR) technique. The motivation comes from the fact that some unexpected state matching performance might be experienced as a sampling period approaches zero. To improve the state matching performance for that case, a refined LMI-based DR is proposed by using the delta operator that creates rapprochement between the differential and the shift operators. It is proved that the analog control performance is recovered by the refined DR scheme in the fast sampling limit.
引用
收藏
页码:473 / 477
页数:5
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