Data processing: generic control systems or specific application – Generic control system – apparatus or process – Optimization or adaptive control
Patent
1997-07-29
2000-02-15
Grant, William
Data processing: generic control systems or specific application
Generic control system, apparatus or process
Optimization or adaptive control
G05B 1302
Patent
active
060263342
ABSTRACT:
A control system for calculating a number of output control signals for use in a continuous web paper making system. The control system receives a number of input signals from a plurality of sensors and reduces the number of inputs using a singular value decomposition based on a static model of the paper making system. The space of the inputs is further reduced using a principal component analysis of a moving window of values equal to the difference in the sensor values and an output of the static model of the paper making system. Once the space of the inputs is reduced, they are applied to a reduced order control system that calculates a reduced number of output control signals. The outputs of the reduced order control system are a function of the principal component analysis of the data in the moving window. The space of the output control signals is then increased using inverse transformations of the principal component analysis and the singular value decomposition before being applied to a plurality of actuators that control the paper making system.
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Arkun Yaman
Kayihan Ferhan
Grant William
Rapp Chad
Weyerhaeuser Company
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