| Autor: |
Olav Egeland, H. Ludvigsen, Romeo Ortega, P. Albertos |
| Rok vydání: |
1998 |
| Předmět: |
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| Zdroj: |
IFAC Proceedings Volumes. 31:303-308 |
| ISSN: |
1474-6670 |
| DOI: |
10.1016/s1474-6670(17)40352-1 |
| Popis: |
We study here the problem of controlling continuous time nonlinear dynamical systems whose inputs live on a finite set. Our main concern is the situation when, due to technological or information transmition considerations, fast switching is not possible. To compensate for the delay we incorporate into our scheme a predictive feature and minimize the predicted behaviour of a Lyapunov function. This is of particular interest when the zero dynamics are periodic. Also, if during the transient we cannot decrease the original Lyapunov function, we propose to switch to a partial one. Instrumental for our study is a novel characterization in input space of switching (and in particular sliding mode) control. The new scheme is applied to the practically important problem of direct torque and flux control of induction motors, for which a complete stability analysis is carried out. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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