Supervisory Control of Mode-switch Processes: Application to a Flexible Beam
نویسندگان
چکیده
Many processes operate only arounda limitednumber of operation points.In order to have adequatecontrol around each operation point, an adaptive controller couldbe used.Then,if the operationpoint changesoften, a largenumberof parameters wouldhavetobe adapted overand over again. This prohibits application of conventional adaptive control, whichis more suited for processes with slowly changing parameters. Furthermore, continuous adaptation is not always needed or desired. An extensionof adaptive controlis presented, in whichforeachoperation point the processbehaviourcan be storedin a memory, retrieved from it andevaluated. Thesefunctions are coordinatedby a "supervisor". This conceptis referred to as supervisory control. It leadsto an adaptivecontrol structure which, after a learningphase,quicklyadjusts thecontroller parameters basedon retrievalof old information, withouttheneedto fully relearneachtime. Thisapproach has been tested on an experimental set-upof a flexiblebeam,but it is directly applicable to processes in e.g, the (petro)chemical industryas well.
منابع مشابه
A supervisor for control of mode-switch processes
Controllers for processes which frequently return to a number of modes of operation should be adapted through mode recognition. Al~tmd-Many processes operate only around a limited number of operation points. In order to have adequate control around each operation point, an adaptive controller could be used. When the operation point changes often, a large number of parameters would have to be ad...
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