Fully Discrete Control Scheme of the Energy-Performance Tradeoff in Embedded Electronic Devices

Sylvain Durand 1 Nicolas Marchand 2
1 NECS - Networked Controlled Systems
Inria Grenoble - Rhône-Alpes, GIPSA-DA - Département Automatique
2 GIPSA-SYSCO - SYSCO
GIPSA-DA - Département Automatique
Abstract : A voltage scalable device is known to be interesting for energy saving. It enables to reduce the general speed of the device and, therefore, its consumption. We already proposed a fast predictive control strategy to deal with this power-performance tradeoff in an electronic device supplied by two voltage levels and a continuously varying frequency. In this paper, the approach is extended to a fully discrete scheme with M possible voltage levels and N frequency levels. The proposed approach clearly gives an important reduction of the energy consumption with a very low control computational cost. Moreover, the control strategy is highly robust to tackle variability since it is not based on any parameters of the system.
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Sylvain Durand, Nicolas Marchand. Fully Discrete Control Scheme of the Energy-Performance Tradeoff in Embedded Electronic Devices. 18th IFAC World Congress (IFAC WC 2011), Aug 2011, Milan, Italy. ⟨10.3182/20110828-6-IT-1002.01961⟩. ⟨hal-00568103⟩

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