| Fuzzy controller design for networked control system with time-variant delays |
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| 作者姓名： | Li Zhang & Fang Huajing . Dept. of Control Science and Engineering Huazhong Univ. of Science and Technology Wuhan P.R.China . Coll. of Physics and Electronic Technology Hubei Univ. Wuhan P.R. China |
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| 作者单位： | Li Zhang 1，2 & Fang Huajing1 1. Dept. of Control Science and Engineering，Huazhong Univ. of Science and Technology，Wuhan 430074，P.R.China; 2. Coll. of Physics and Electronic Technology，Hubei Univ.，Wuhan 430062，P.R. China |
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| 基金项目： | 中国科学院资助项目;国家高等教育博士研究基金 |
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| 摘 要： | 1.INTRODUCTIONAs a system becomes more and more intelligent andflexible,the systemrequires more sensors,actuators,and controllers,which are often referred to as fielddevices.In most cases,these field devices requiresome type of electrical connection because they aredistributed over a certain area.Conventionally thesedevices are connected with point-to-point connec-tions,whichis not suitable any more for modern in-dustrial control systems,because the number of cableis proportional tothe squ…
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| 收稿时间： | 9 December 2004 |
Fuzzy controller design for networked control system with time-variant delays |
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| Li Zhang , & Fang Huajing . Dept. of Control Science and Engineering,Huazhong Univ. of Science and Technology,Wuhan ,P.R.China, . Coll. of Physics and Electronic Technology,Hubei Univ.,Wuhan ,P.R. China.Fuzzy controller design for networked control system with time-variant delays[J].Journal of Systems Engineering and Electronics,2006,17(1):172-176. |
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| Authors: | Li Zhang Fang Huajing |
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| Institution: | 1. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA;2. School of Information Engineering, Chang’an University, Xi’an, Shannxi, 710064, China;3. NEXTRANS Center, Purdue University, West Lafayette, IN, 47907, USA;4. H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, GA, 30318, USA;1. Mayo Clinic Arizona, Department of Nursing, Education and Professional Development, 5777 East Mayo Boulevard, Phoenix, AZ 85054, United States;2. Arizona State University, College of Nursing and Health Innovation, 550 North 3rd Street, Phoenix, AZ 85004, United States |
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| Abstract: | Networked control system is new hot-point in control engineering. A new delayed model for networked control systems is presented, based on which an LQR controller is designed. A method of delays estimation online is also given. For the difficulty on implementation of LQR in NCSs with time-variant delays, the Mamdani intelligent logic with LQR controller is addressed. The stability of the networked control system is also given. Simulation results prove that the novel controller can make the system stable and robustly preserve the performance in terms of time-variant delays. |
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| Keywords: | control engineering intelligent network |
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