Further Results on Event-Based PID Controller

Sylvain Durand 1, 2 Nicolas Marchand 1, 3
1 NECS - Networked Controlled Systems
Inria Grenoble - Rhône-Alpes, GIPSA-DA - Département Automatique
3 GIPSA-SYSCO - SYSCO
GIPSA-DA - Département Automatique
Abstract : In this paper, some improvements of the simple event-based PID controller presented by K-E Arzen in the 14th World Congress of IFAC (Beijing, P.R. China, 1999) are proposed. This controller, contrary to a time-triggered controller which calculates the control signal at each sampling time, calculates the new control signal only when the measurement signal sufficiently changes. In the original work of Arzen, a safety maximum period is added forcing the control to be recomputed even if the measurement signal remains unchanged. The contribution of this paper is to propose a scheme to avoid this re-computation. Besides a noticeable reduction of the mean control computation cost, the performance of the closed loop system is also improved.
Type de document :
Communication dans un congrès
European Control Conference, ECC'09, Aug 2009, Budapest, Hungary. Proceedings of the European Control Conference 2009, pp.1979-1984, 2009
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Sylvain Durand, Nicolas Marchand. Further Results on Event-Based PID Controller. European Control Conference, ECC'09, Aug 2009, Budapest, Hungary. Proceedings of the European Control Conference 2009, pp.1979-1984, 2009. 〈hal-00368535〉

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