decentralized mrac for large scale systems with input and state delays

Authors

syed hamid hashemipour

nastrn vasegh

ali khaki sedigh

abstract

in this paper, the problem of decentralized model reference adaptive control (mrac) for a class of large scale systems with time varying delay in interconnected term and input and state delays is studied. to compensate the effect of input delay indirectly, a smith predictor built on. to handle the effects of the time delays in input, the adaptive controller part includes two auxiliary dynamic filters with time varying gains. under a usual assumption that the interconnections are assumed to be lipschitz in its variables and uniformly in time with unknown lipschitz gains, the difficulties from unknown interconnections are dealt. a generalized error is defined and by a suitable lyapunov function, an adaptive controller is designed to stabilize it. decentralized adaptive feedback controller can render the generalized error system uniformly ultimately bounded stable is designed. finally, a numerical example is given to demonstrate the feasibility and effectiveness of the proposed design techniques.

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Journal title:
the modares journal of electrical engineering

Publisher: tarbiat modares university

ISSN 2228-527 X

volume 12

issue 3 2015

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