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| 基金项目:This work was supported by the French ANR Project CRYOGREEN. |
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| Experimental investigation of control updating period monitoring in industrial PLC-based fast MPC: Application to the constrained control of a cryogenic refrigerator |
| F. Bonne,M. Alamir,P. Bonnay |
| (Universit\'{e} Grenoble Alpes, INAC-SBT, F-38000 Grenoble, France;CNRS, Gipsa-lab, Universit\'{e} Grenoble Alpes, F-3800 Grenoble, France) |
| Abstract: |
| In this paper, a complete industrial validation of a recently published scheme for on-line adaptation of the control updating period in Model Predictive Control is proposed. The industrial process that serves in the validation is a cryogenic refrigerator that is used to cool the supra-conductors involved in particle accelerators or experimental nuclear reactors. Two recently predicted features are validated: the first states that it is sometimes better to use less efficient (per iteration) optimizer if the lack of efficiency is over-compensated by an increase in the updating control frequency. The second is that for a given solver, it is worth monitoring the control updating period based on the on-line measured behavior of the cost function. |
| Key words: Fast MPC, cryogenic refrigerators, control updating period, ODE-based optimization |
