Suboptimal reliable guaranteed cost control for continuous-time systems with multi-criterion constraints |
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| Authors: | Deng-feng Zhang Hong-ye Su Jian Chu and Zhi-quan Wang |
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| Institution: | [1]Institute of Advanced Process Control, Zhejiang University, Hangzhou 310027, China [2]School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China |
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| Abstract: | The suboptimal reliable guaranteed cost control (RGCC) with multi-criterion constraints is investigated for a class of uncertain continuous-time systems with sensor faults.A fault model in sensors,which considers outage or partial degradation of sensors,is adopted.The influence of the disturbance on the quadratic stability of the closed-loop systems is analyzed.The reliable state-feedback controller is developed by a linear matrix inequalities (LMIs) approach,to minimize the upper bound of a quadratic cost function under the conditions that all the closed-loop poles be placed in a specified disk,and that the prescribed level of H∞ disturbance attenuation and the upper bound constraints of control inputs' magnitudes be guaranteed.Thus,with the above multi-criterion constraints,the resulting closed-loop system can provide satisfactory stability,transient property,a disturbance rejection level and mininaized quadratic cost performance despite possible sensor faults. |
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| Keywords: | Sensor faults Multi-criterion constraints Reliable guaranteed cost control (RGCC) Linear matrix inequality (LMI) |
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