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Lasso constraint regularized multi-objective variable hierarchical decoupling optimization flatness control strategies
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DOI：10.1007/s00170-025-15435-9.png)
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Abstract
En 中文
Flatness control in strip steel is a complex, nonlinear, multivariable problem, with irregular distribution along the width direction. This paper proposes a hierarchical decoupling optimization (HDO) strategy for multi-objective variable control, aiming to optimize control objectives. To address irregular flatness distribution in actual production, a Lasso constraint penalty factor is introduced into the control objective function. The proposed strategy is applied to the cold rolling process, with production results showing a 7.71% improvement in flatness control accuracy and enhanced uniformity in the flatness distribution.
Keywords:
Hierarchical decoupling
Flatness control
Lasso constraint
Control strategy
Cold rolling
Journal
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