This paper examines robust finite-time passivity and finite-time stabilization for a structural uncertain switched nonlinear system. First, robust finite-time passivity is defined to characterize the energy changing of uncertain switched nonlinear systems, whose energy may increase both at each switching time and during the active time interval. By this concept, even if only an active subsystem has robust finite-time passivity property on its active time interval, the finite-time stability is verified. The settle time can be adjusted by the controllers of finite-time passive active subsystem. Second, based on a given robust finite-time passivity condition, a design method of switching law dependent on states is proposed to achieve finite-time passivity. Third, robust finite-time passivation is achieved by designing the switching law dependent on states and robust controllers. Finally, three examples are presented to illustrate the effectiveness of the developed approach.
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