Stabilizability and Disturbance Rejection with State-Derivative Feedback

Moreira, Manoel R. [UNESP]; Mainardi Junior, Edson I. [UNESP]; Esteves, Talita T. [UNESP]; Teixeira, Marcelo C. M. [UNESP]; Cardim, Rodrigo [UNESP]; Assuncao, Edvaldo [UNESP]; Faria, Flavio A. [UNESP]

Stabilizability and Disturbance Rejection with State-Derivative Feedback

Arquivos

WOS000286269700001.pdf (1.42 MB)

Data

2010-01-01

Autores

Moreira, Manoel R.

Mainardi Junior, Edson I.

Esteves, Talita T.

Teixeira, Marcelo C. M.

Cardim, Rodrigo

Assuncao, Edvaldo

Faria, Flavio A.

Editor

Hindawi Publishing Corporation

Tipo

Artigo

Direito de acesso

Acesso aberto

Resumo

In some practical problems, for instance in the control of mechanical systems using accelerometers as sensors, it is easier to obtain the state-derivative signals than the state signals. This paper shows that (i) linear time-invariant plants given by the state-space model matrices {A, B, C, D} with output equal to the state-derivative vector are not observable and can not be stabilizable by using an output feedback if det(Lambda) = 0 and (ii) the rejection of a constant disturbance added to the input of the aforementioned plants, considering det (A) not equal 0, and a static output feedback controller is not possible. The proposed results can be useful in the analysis and design of control systems with state-derivative feedback.