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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Calculating setpoint range under actuator saturation and stochastic disturbance

Xia, H. and Majecki, P.M. and Ordys, A.W. and Grimble, M.J. (2005) Calculating setpoint range under actuator saturation and stochastic disturbance. In: IEEE International Conference on Control Applications, 2005-08-28 - 2005-08-31.

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Abstract

Minimum variance (MV) has been widely used as a benchmark to assess the regulatory performance of control loops. However, due to the physical constraints (saturation) of the actuator, the MV performance cannot be achieved in many cases. In this paper, we investigate the output regulatory performance achievable under actuator saturation. The constrained minimum variance controller is first introduced. The performance of the linear LQG controller under saturation is also discussed. A procedure on how to compute the maximal achievable set-point range under saturation limits is presented. It is believed that with the information on achievable set-point range, the high level optimization can be greatly simplified.