The H∞ output feedback control problem for uncertain discrete-time switched systems is reasearclled. A new characterization of stability and H∞ performance for the switched system under arbitrary switching is obtain...The H∞ output feedback control problem for uncertain discrete-time switched systems is reasearclled. A new characterization of stability and H∞ performance for the switched system under arbitrary switching is obtained by using switched Lyapunov function. Then, based on the characterization, a linear matrix inequality （LMI） approach is developed to design a switched output feedback controller which guarantees the stability and H∞ performance of the closed-loop system. A numerical example is presented to demonstrate the application of the proposed method.展开更多
A robust dissipative control problem for a class of It-type stochastic systems is discussed with Markovian jumping parameters and time-varying delay.A memoryless state feedback dissipative controller is developed base...A robust dissipative control problem for a class of It-type stochastic systems is discussed with Markovian jumping parameters and time-varying delay.A memoryless state feedback dissipative controller is developed based on Lyapunov-Krasovskii functional approach such that the closed-loop system is robustly stochastically stable and weakly delay-dependent(RSSWDD)and strictly(Q,S,R)-dissipative.The sufficient condition on the existence of state feedback dissipative controller is presented by linear matrix inequality(LMI).And the desired controller can be concluded as solving a set of LMI.Finally,a numerical example is provided to demonstrate the effectiveness of the proposed approach.展开更多
Developing photovoltaic(PV)cells for harvesting renewable and clean solar energy is a promising strategy to meet the growing energy demand.Perovskite solar cells(PSCs),as a new player in the photovoltaic field,exhibit...Developing photovoltaic(PV)cells for harvesting renewable and clean solar energy is a promising strategy to meet the growing energy demand.Perovskite solar cells(PSCs),as a new player in the photovoltaic field,exhibit rapid development with an original power conversion efficiency(PCE)of 3.81%in 2009,a promising PCE of over 20%in 2014 and a record PCE of 22.1%in展开更多
基金the National Natural Science Foundation of China (60574083)the Scientific Research Foundation for the Returned Overseas Chinese Scholars (SRF for ROCS),State Education Ministry of China.
文摘The H∞ output feedback control problem for uncertain discrete-time switched systems is reasearclled. A new characterization of stability and H∞ performance for the switched system under arbitrary switching is obtained by using switched Lyapunov function. Then, based on the characterization, a linear matrix inequality （LMI） approach is developed to design a switched output feedback controller which guarantees the stability and H∞ performance of the closed-loop system. A numerical example is presented to demonstrate the application of the proposed method.
基金supported in part by the National Natural Science Foundation of China(60874045,60904030)the Foundation of the Education Bureau of Jiangsu Province(09KJB510019)the Natural Science Foundation of Jiangsu Province(BK2009184)
文摘A robust dissipative control problem for a class of It-type stochastic systems is discussed with Markovian jumping parameters and time-varying delay.A memoryless state feedback dissipative controller is developed based on Lyapunov-Krasovskii functional approach such that the closed-loop system is robustly stochastically stable and weakly delay-dependent(RSSWDD)and strictly(Q,S,R)-dissipative.The sufficient condition on the existence of state feedback dissipative controller is presented by linear matrix inequality(LMI).And the desired controller can be concluded as solving a set of LMI.Finally,a numerical example is provided to demonstrate the effectiveness of the proposed approach.
文摘Developing photovoltaic(PV)cells for harvesting renewable and clean solar energy is a promising strategy to meet the growing energy demand.Perovskite solar cells(PSCs),as a new player in the photovoltaic field,exhibit rapid development with an original power conversion efficiency(PCE)of 3.81%in 2009,a promising PCE of over 20%in 2014 and a record PCE of 22.1%in
