CUED Publications database

Channel-hopping model predictive control

Ling, KV and MacIejowski, JM and Guo, J and Siva, E (2011) Channel-hopping model predictive control. IFAC Proceedings Volumes (IFAC-PapersOnline), 18. pp. 11417-11422. ISSN 1474-6670

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Abstract

In Multiplexed MPC, the control variables of a MIMO plant are moved asynchronously, following a pre-planned periodic sequence. The advantage of Multiplexed MPC lies in its reduced computational complexity, leading to faster response to disturbances, which may result in improved performance, despite finding sub-optimal solution to the original problem. This paper extends the original Multiplexed MPC in a way such that the control inputs are no longer restricted to a pre-planned periodic sequence. Instead, the most appropriate control input channel would be optimised and selected to counter the disturbances, hence the name 'Channel-Hopping'. In addition, the proposed algorithm is suitable for execution on modern computing platforms such as FPGA or GPU, exploits multi-core, parallel and pipeline computing techniques. The algorithm for the proposed Channel-hopping MPC (CH-MPC) will be described and its stability established. Illustrative examples are given to demonstrate the behaviour of the proposed Channel-Hopping MPC algorithm. © 2011 IFAC.

Item Type: Article
Uncontrolled Keywords: Constrainedcontrol Distributed control Multiplexed Parallel computing Periodic systems Predictive control
Subjects: UNSPECIFIED
Divisions: Div F > Control
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:15
Last Modified: 08 Dec 2014 02:36
DOI: 10.3182/20110828-6-IT-1002.01590