- Tytuł:
- Fuzzy logic gain scheduling for non-linear servo tracking
- Autorzy:
-
Brdyś, M. A.
Littler, J. J. - Powiązania:
- https://bibliotekanauki.pl/articles/908000.pdf
- Data publikacji:
- 2002
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
elektrotechnika
tracking
servo control
gain scheduling
fuzzy logic
stiction friction
hard non-linearities - Opis:
- This paper proposes the use of gain scheduling as a method of controlling a servo system with hard non-linear elements. The servo controls two elements of a tracker mounted on a ship at sea. There is stiction at the zero velocity point and non-linear friction against the motion of each tracker axis. A dual feedback loop control structure is employed. Fuzzy logic is used to provide smoothly varying non-linear scheduling functions to map the velocity of the servo relevant to the deck of the ship onto the rate loop controller parameters. Consideration is given to the use of a derivative signal as a secondary input to the fuzzy inference system. Results are presented which demonstrate that this method of controlling the servo system gives a dramatic improvement over the traditional linear control methodology for low velocity tracking performance. A linear PID controller is used in the outer loop and its design is also given some consideration.
- Źródło:
-
International Journal of Applied Mathematics and Computer Science; 2002, 12, 2; 209-219
1641-876X
2083-8492 - Pojawia się w:
- International Journal of Applied Mathematics and Computer Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł