Struktura obiektu

Autor:

Brdyś, Mieczysław A. ; Littler, Jonathan J.

Współtwórca:

Korbicz, Józef - red. ; Uciński, Dariusz - red.

Tytuł:

Fuzzy logic gain scheduling for non-linear servo tracking

Tytuł publikacji grupowej:

AMCS, volume 12 (2002)

Temat i słowa kluczowe:

tracking ; servo control ; gain scheduling ; fuzzy logic ; stiction friction ; hard non-linearities

Abstract:

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.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Data wydania:

2002

Typ zasobu:

artykuł

Strony:

209-219

Źródło:

AMCS, volume 12, number 2 (2002) ; kliknij tutaj, żeby przejść

Jezyk:

eng

Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego