Compensation of the scan-period irregularities in LQG control systems

• Autorzy: Cvejn J.
• Języki publikacji: EN

Abstrakty

EN

Computer-based control applications, especially if they run under general-purpose opera\-ting systems, often exhibit variance of the scan period of processing inputs and outputs. Although this phenomenon is usually neglected when discrete control algorithms are used, it can cause worse performance of the control loop in comparison to theoretical case. In this paper we describe a modified discrete LQG control algorithm that takes disturbances of the scan period into account and partially compensates their effect. This modification concerns both the state estimation and generating the control output. We also show that such a controller can be implemented even on relatively simple hardware platforms if the system dynamics is time-invariant.

Słowa kluczowe

EN

LQG controller; stochastic control; hybrid systems

• Wydawca: Polish Academy of Sciences, Committee of Automatic Control and Robotics
• Czasopismo: Archives of Control Sciences
• Rocznik: 2008
• Tom: Vol. 18, no. 3
• Strony: 277--288
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Cvejn J.

• University of Pardubice, Faculty of Electrical Engineering and Informatics, Czech Republic,

Bibliografia

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