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A pressure reducing valve (PRV) consists of a main valve and a PRV controller which senses the output pressure and adjusts the opening of the main valve to maintain the outlet pressure at a given set-point [2]. Although it is well known that PRVs tend to oscillate at low flows the problem is not properly understood. This research was motivated by an industrial case-study to remediate instability in...
Utility service provision is designed to satisfy basic human needs. The main objective of the research is to investigate mathematical methods for evaluating the feasibility of using a more efficient approach for utility services provision, compared to the current diversity of utility products delivered to households. Possibilities for alternative utility service provision that lead to more sustainable...
This paper considers a compensation strategy for tumour motion caused by respiration and patient movements during radiotherapy treatments using a controlled patient support system (PSS). An output-feedback model predictive control (MPC) scheme for the PSS to track the tumour motion is proposed. The MPC controller utilizes predicted tumour positions, which are calculated by a Kalman filter, as reference...
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