Adaptive control with variable dead-zone nonlinearitiesIt has been found that fixed error dead-zones as defined in the existing literature result in serious degradation of performance, due to the conservativeness which characterizes the determination of their width. In the present paper, variable width dead-zones are derived for the adaptive control of plants with unmodeled dynamics. The derivation makes use of information available about the unmodeled dynamics both a priori as well as during the adaptation process, so as to stabilize the adaptive loop and at the same time overcome the conservativeness and performance limitations of fixed-dead zone adaptive or fixed gain controllers.
Document ID
19850065651
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Orlicki, D. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Valavani, L. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Athans, M. (Massachusetts Inst. of Tech. Cambridge, MA, United States)