Title :
Optimised implementation of adaptive GPC for low-order systems with time delays
Author_Institution :
Electron. & Control Group, Teesside Univ., Middlesbrough, UK
Abstract :
In adaptive situations the comparatively large run-time computational burden and implementation complexity of the generalised predictive control (GPC) algorithm can prove troublesome. Presented is an optimised design to implement a GPC adaption mechanism for low-order systems. By adopting a compact state-space model and symbolically solving the underlying Riccati equations, an exact solution with a trivial code implementation is obtained. The proposed approach significantly reduces the computational and memory burden of the standard method, and gives improved performance over approximate schemes whilst exhibiting comparable overheads.
Keywords :
Riccati equations; delays; predictive control; state-space methods; GPC adaption mechanism; Riccati equations; adaptive GPC; compact state-space model; generalised predictive control algorithm; low-order systems; time delays; trivial code implementation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.0234