Invention Grant
- Patent Title: Method and apparatus for robust tuning of model-based process controllers used with uncertain multiple-input, multiple-output (MIMO) processes
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Application No.: US14729930Application Date: 2015-06-03
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Publication No.: US09971318B2Publication Date: 2018-05-15
- Inventor: Ning He , Dawei Shi , Michael Forbes , Johan U. Backstrom , Tongwen Chen
- Applicant: Honeywell ASCa Inc.
- Applicant Address: CA Mississauga
- Assignee: Honeywell Limited
- Current Assignee: Honeywell Limited
- Current Assignee Address: CA Mississauga
- Main IPC: G05B13/04
- IPC: G05B13/04 ; G02B15/02 ; G06F17/10 ; G05B15/02

Abstract:
A method includes obtaining information identifying (i) uncertainties associated with multiple time-domain parameters of a model and (ii) time-domain performance specifications for a model-based industrial process controller. The model mathematically represents a MIMO industrial process. The method also includes generating multiple tuning parameters for the controller based on the uncertainties and the time-domain performance specifications. The tuning parameters include vectors of tuning parameters associated with the controller, and each vector includes values associated with different outputs of the industrial process. The time-domain parameters could include a process gain, a time constant, and a time delay for each input-output pair of the model. The time-domain performance specifications could include requirements related to worst-case overshoots, settling times, and total variations. The uncertainties could be specified as intervals in which the time-domain parameters lie.
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