Stabilizability and Disturbance Rejection with State-Derivative Feedback
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 out...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2010-01-01
|
| Series: | Mathematical Problems in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2010/123751 |
| Summary: | 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(A)=0 and (ii) the
rejection of a constant disturbance added to the input of the aforementioned plants, considering
det(A)≠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. |
|---|---|
| ISSN: | 1024-123X 1563-5147 |