King-Tan Lee

Upper core point detection using improved ant colony optimization algorithm

Tsong-Liang Huang, Che-Wei Liu, Chia-Cheng Chao, King-Tan Lee et autres

Minutiae detection is a crucial process in an automatic fingerprint identification system. Most fingerprint comparison algorithms are based on minutiae matching. However, the local orientation changes very rapidly in the singular point area. It is difficult to locate the singular point precisely. …

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System time-varying controller design via E.A. method

Tsong-Liang Huang, King-Tan Lee, Tsong‐Yau Hwang, Chia-Cheng Chao

The new concepts of time-varying stabilizer via dynamic pole assignment and eigenstructure assignment method (E.A. method) are introduced in this paper. The theorem of dynamic pole assignment is obtained by employing the piecewise constant concept. By specifying the final eigenstructure, the parameters …

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Controllable performance system regulator

Tsong‐Yau Hwang, Tsong-Liang Huang, Chih‐Han Chang, King-Tan Lee et autres

The concept of time-varying state feedback control of a system under the desired closed loop scate transition matrix is introduced. By setting the parameters or the preset state transition matrix, the time-varying state feedback can be designed. The theorem and design method …

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System output feedback controller design via O.S.A. method

Tsong‐Yau Hwang, Tsong-Liang Huang, King-Tan Lee, Chih‐Han Chang et autres

The paper addresses the design of a system stabilizer using an optimal reduced order model by only the output state variables. System damping can be improved by using eigenvalues assignment and the co-ordination of stabilizers can be achieved through eigenvector assignment by …

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LMI Approach to Simultaneous Output-Feedback Stabilization for Interval Time-Delay Systems∗

Yuan-Chang Chang, King-Tan Lee

Abstract:- This paper considers the problem of simultaneously stabilizing output feedback controller design for a collection of interval time-delay systems. It is shown that this problem is solvable if a matrix measure assignment problem is solvable. Thus, in this study, we proposed …

Optimal design for power system dynamic stabilizer by grey prediction PID control

Chian-Chuang Ding, King-Tan Lee, Chee-Ming Tsai, Tsong-Liang Huang

In this paper, we proposed an effective method to design the power system stabilizers (PSS). The design of a PSS can be formulated as an optimal linear regulator control problem; however, implementing this technique requires the design of estimators. This increases the …

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