tailieunhanh - Output feedback control with constraints for nonlinear systems via piecewise quadratic optimization

The paper proposes a nonlinear control method, which can be applied to output tracking control a wide range of various perturbed nonlinear objects. This output feedback controller is established based on piecewise quadratic optimizing subjected to input constraints for state feedback control and then combined with an appropriate EKF or UKF for system state observation. | Vietnam Journal of Science and Technology 55 (3) (2017) 324-333 DOI: OUTPUT FEEDBACK CONTROL WITH CONSTRAINTS FOR NONLINEAR SYSTEMS VIA PIECEWISE QUADRATIC OPTIMIZATION Nguyen Doan Phuoc1, *, Pham Van Hung2, Hoang Duc Quynh3 1 Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi 2 3 Hanoi University of Industry, 298 Cau Dien, Hanoi Thai Nguyen Industrial Economic-Technology College, Trung Thanh, Pho Yen, Thai Nguyen * Email: Received: 13 July 2016; Accepted for publication: 8 February 2017 ABSTRACT Very few output feedback control methods can be applied for a large class of nonlinear objects. If the control problem has supplementary constraints to satisfy, the number of suitable methods will be fewer. The paper proposes a nonlinear control method, which can be applied to output tracking control a wide range of various perturbed nonlinear objects. This output feedback controller is established based on piecewise quadratic optimizing subjected to input constraints for state feedback control and then combined with an appropriate EKF or UKF for system state observation. The simulation results obtained by applying this proposed controller to output tracking control inverted pendulum and boiler-turbine unit had confirmed its promising applicability in practice. Keywords: quadratic optimization, EKF/UKF filtering, optimal control. 1. INTRODUCTION Whereas almost nonlinear control methods are unable to handle unavoidable system constraints, the MPC method proposed in [1] seems to be a good controller for such constrained control problem. However, since the directly using nonlinear model for output prediction, this technique for NMPC requires additionally a penalty function for objective function in order to guarantee the stability of the closed system [2]. Unfortunately, the question how to choose this penalty function suitably is still open. To overcome this circumstance, the piecewise .

• Hoá học
• Journal of Science and Technology
• Output feedback control
• Output feedback control with constraints
• Nonlinear systems via piecewise quadratic optimization
• System state observatio
• State feedback control
• Journal of Marine science and Technology
• Marine science and Technology
• Marine science and Technology no 56
• Marine science and Technology year 2018
• Evaluation method
• Electrical energy management model
• Marine science and Technology no 53
• Diesel engines
• Journal of Fisheries science and Technology
• Fisheries science and Technology
• Fisheries science and Technology no 3
• Fisheries science and Technology year 2016
• Striped catfish
• Common carp cyprinus carpio
• Fisheries science and Technology no 4
• Fisheries science and Technology year 2018
• Coastal fi shing activities
• White striped cleaner shrimp
• Journal of Science
• Journal of Technology
• Technology Management
• Science and Technology
• International integration
• Science and Technology Strategy
• Evaluation of science and technology
• Global journal of computer science
• Global journal of computer science and technology
• Information & technology
• GIS based fire emergency response system
• Marine science and technology no 61
• Actual GPS receivers
• Display information on stability
• Nuclear science and technology
• The journal of Nuclear science and technology
• Rotary rack served for elemental concentration
• Seawaterusing co precipitation method
• Natural radionuclides
• Experimental data
• Low energy experiments
• Multigroup cross sections
• Stable isotopic values
• Radial blanket
• Dissolved nitrogen compounds
• Irradiation channels
• Neutron rich nuclei
• Prescila neutron probe
• Full core conversion
• Multipurpose research reactor
• Aquatic environment
• Geochemical parameters
• External reactor vessel cooling method
• Radiation crosslinked scaffolds
• Adipose derived stem cell culture
• Treatment plans
• Minor actinide compositions
• IM NAA of non standard geometrical samples
• Cross shaped obstacle
• University entrepreneurship
• Entrepreneurial research university
• Technology innovation
• Industry university cooperation
• Regional innovation
• Journal of technology and science education
• Bring science and technology closer to secondary school
• Technology closer to secondary school
• Secondary school teachers
• Face to face
• Technology development
• Technology commercialization
• The role of informal science centers in science education
• Informal science center
• Attudes toward science
• Scientfic thinking skills
• Scientific research
• Research quality
• Strategy and policy
• Research Organizations
• Policy Planning
• Science and Technology development
• Theory Z
• Human Resources
• Development policy of Japan
• ‘Standards’ on the bench
• Technological literacy render an adequate image of technology
• Adequate image of technology
• Standards for technological literacy
• Philosophy of technology
• The nature of technology
• Concepts of technology
• Post secondary project based learning in science
• Post secondary project based learning in technology
• Post secondary project based learning in engineering and mathematics
• Post secondary project