Model-plant mismatch detection using model parameter data clustering fortransverse process behavior monitoring

A model, behavioral technology, applied in the direction of comprehensive factory control, comprehensive factory control, simulator, etc., can solve problems such as difficulty in using routine operation data, interference with product quality, etc.

Active Publication Date: 2018-03-23
HONEYWELL INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is often difficult to use routine operating data to determine whether the model accurately describes real process behavior
Furthermore, it is generally not advis...

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  • Model-plant mismatch detection using model parameter data clustering fortransverse process behavior monitoring
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  • Model-plant mismatch detection using model parameter data clustering fortransverse process behavior monitoring

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Embodiment Construction

[0017] In this patent document, the following discussed Figure 1 to Figure 7 And the various embodiments used to describe the principles of the invention are by way of illustration only and should not be construed in any way to limit the scope of the invention. Those skilled in the art will understand that the principles of the invention may be implemented in any type of suitably arranged device or system.

[0018] As noted above, a model-based industrial process controller is one type of process controller that is routinely used to control the operation of an industrial process. Model-based process controllers typically use one or more models to mathematically represent how one or more properties within an industrial process respond to changes made to the industrial process. Model-based controllers generally require an accurate model of process behavior in order to perform well. As conditions associated with an industrial process change, models for the process often need t...

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Abstract

A method includes obtaining (402) operating data associated with operation of a cross-directional industrial process controlled by at least one model-based process controller (106, 204). The method also includes, during a training period (502a, 502b), performing (406) closed-loop model identification with a first portion of the operating data to identify multiple sets of first spatial and temporalmodels. The method further includes identifying (408) clusters (604) associated with parameter values of the first spatial and temporal models. The method also includes, during a testing period (504a, 504b), performing (410) closed-loop model identification with a second portion of the operating data to identify second spatial and temporal models. The method further includes determining (412) whether at least one parameter value of at least one of the second spatial and temporal models falls outside at least one of the clusters. In addition, the method includes, in response to such a determination (414), detecting that a mismatch exists between actual and modeled behaviors of the industrial process.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY CLAIM [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 62 / 395,950, filed September 16, 2016, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure generally relates to measurement and control systems. More specifically, the present disclosure relates to model plant mismatch detection using support vector machines for lateral process behavior monitoring. Background technique [0004] Industrial process control and automation systems are often used to automate large and complex industrial processes. These types of control and automation systems routinely include process controllers and field devices such as sensors and actuators. Some of the process controllers typically receive measurements from sensors and generate control signals for actuators. A model-based industrial process controller is one type o...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCG05B19/4185G05B2219/31088G05B17/02G05B2219/25298G05B13/04G05B13/041G05B13/048G05B23/0254G06N20/10G05B23/0243
Inventor 卢秋岗R.B.戈帕卢尼M.G.福布斯P.D.勒文J.U.贝克斯特伦G.A.迪蒙
Owner HONEYWELL INC
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