Passivity of switched linear systems: Analysis and control design
نویسندگان
چکیده
A passive system with positive definite storage function is not only stable but is intrinsically robustly stable with respect to a wide class of feedback disturbances. For linear time invariant systems, passivity can be characterized either in time domain or in frequency domain frompositive realness. This paper aims to generalize this concept to continuous-time switched linear systems. Analysis is performed by taking into account state dependent and arbitrary time dependent switching functions with a prescribed dwell time. A control design problem related to the determination of a switching strategy, based upon output measurements, that renders a switched linear system passive is also considered. Themethods introduced in the paper can be effectively applied to the control of the duty cycle and passivation of switched circuits. © 2012 Elsevier B.V. All rights reserved.
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عنوان ژورنال:
- Systems & Control Letters
دوره 61 شماره
صفحات -
تاریخ انتشار 2012