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褚健, Keqin Zhang, Hongye Su, Kaiyu Zhuang, and Jian Chu
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 11, NO.1, JANUARY 2003,-0001,():
-1年11月30日
Chattering,, discrete-time variable structure control (, DVSC), ,, sliding mode,, switching function.,
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【期刊论文】Multi-objective Optimization of Industrial Purified Terephthalic Acid (PTA) Oxidation Process*
褚健, MU Shengjing**, SU Hongye, GU Yong, CHU Jian
,-0001,():
-1年11月30日
Multi-objective optimization of a purified terephthalic acid (PTA) oxidation unit is carried out in this paper by using a process model that has been proved to describe industrial process quite well. The model is a semi-empirical structured into two series ideal CSTR models. The optimal objectives include maximizing the yield or inlet rate and minimizing the concentration of 4-carboxy-benzaldhyde, which is the main undesirable intermediate product in the reaction process. The multi-objective optimization algorithm is based on Neighborhood and Archived GA, proposed by the authors. The performance of NAGA is further illustrated by application to the title process.
multi-objective optimization,, purified terephthalic acid (, PTA), oxidation process,, neighborhood and archived genetic algorithm
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【期刊论文】Quadratic Stability and Stabilization of Dynamic Interval Systems
褚健, Wei-Jie Mao and Jian Chu
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, VOL. 48, NO.6, JUNE 2003,-0001,():
-1年11月30日
This note presents necessary and sufficient conditions for the quadratic stability and stabilization of dynamic interval systems. The results are obtained in terms of linear matrix inequalities (LMIs) and extended to the quadratic stability and stabilization of linear systems with uncertain parameters.With the powerful LMI toolbox, it is very convenient to solve these problems. The illustrative examples show that this method is effective and less conservative to check the robust stability and to design the stabilizing controller for dynamic interval systems.
Interval systems,, linear matrix inequality (, LMI), ,, quadratic stability,, quadratic stabilization.,
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褚健, Jun Wu, Sheng Chen, James F. Whidborne, and Jian Chu
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, VOL. 48, NO.5, MAY 2003,-0001,():
-1年11月30日
computationally tractable unified finite word length closed-loop stability measure is derived which is applicable to fixed-point, floating-point and block-floating-point representation schemes. Both the dynamic range and precision of an arithmetic scheme are considered in this new unified measure. For each arithmetic scheme, the optimal controller realization problem is defined and a numerical optimization approach is adopted to solve it. Numerical examples are used to illustrate the design procedure and to compare the optimal controller realizations in different representation schemes.
Closed-loop stability,, digital controller,, finite word length,, number representation format,, optimization.,
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【期刊论文】Delay-dependent robust H∞ control for uncertain time-delay systems
褚健, N.-J. Su, H.-Y. Su and J. Chu
IEE Proc.-Control Theory Appl., Vol. 150, No.5, September 2003,-0001,():
-1年11月30日
Robust stabilisability and H∞ control criteria are provided for a class of uncertain timedelay systems with multiple state delays. Simpler and less conservative delay-dependent results given in terms of linear matrix inequalities (LMIs) are derived based on Lyapunov-Krasovskii functional method and Riccati equation transformation technique.
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