An alternative algorithm to EAXCT self-tuning

• Autorzy: Świder Z. , Trybus L.
• Języki publikacji: EN

Abstrakty

EN

An alternative to EXACT self-tuning algorithm available in PID controllers from Emerson-Foxboro is presented. The same specifications, i.e. overshoot and damping of the error transient, are used. Tuning steps are performed along contour lines of three template surfaces which represent overshoot, damping and frequency in terms of loop gain and controller zero. The template surfaces are generated by simulation of PID loop with time-constant-plus-delay plant whose time constant is the same as delay. The algorithm applies simple 2nd order model for oscillating and damped transients. Convergence rate is similar to that of EXACT. Simplified version of the algorithm has been implemented in an industrial controller.

Słowa kluczowe

EN

self-tuning; PID controllers; adaptive control

• Wydawca: Polish Academy of Sciences, Committee of Automatic Control and Robotics
• Czasopismo: Archives of Control Sciences
• Rocznik: 2004
• Tom: Vol. 14, no. 3/4
• Strony: 273--286
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Świder Z.

• University of Technology, Department of Electrical Engineering and Informatics, Rzeszów, Poland

autor

Trybus L.

• University of Technology, Department of Electrical Engineering and Informatics, Rzeszów, Poland

Bibliografia

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