5 papers · 1 filter
Piecewise M-Stationarity and Related Algorithms for Mathematical Programs with Complementarity Constraints
Kexin Wang, Lorenz T. Biegler
This study explores B-stationarity of mathematical programs with complementarity constraints (MPCCs) and convergence behavior of MPCC algorithms. Special attention is given to the…
A trust-region funnel algorithm for gray-box optimization
Gul Hameed, Tao Chen, Antonio del Rio Chanona +2
Gray-box optimization, where parts of optimization problems are represented by algebraic models while others are treated as black-box models lacking analytic derivatives, remains a…
Trust-region filter algorithms utilizing Hessian information for gray-box optimization
Gul Hameed, Tao Chen, Antonio del Rio Chanona +2
Optimizing industrial processes often involves gray-box models that couple algebraic glass-box equations with black-box components lacking analytic derivatives. Such systems challe…
An equation-based batch distillation simulation to evaluate the effect of multiplicities in thermodynamic activity coefficients
Jennifer Werner, Jochen Schmid, Lorenz T. Biegler +1
In this paper, we investigate the influence of multiplicities in activity coefficients on batch distillation processes. In order to do so, we develop a rigorous simulation of batch…
On Optimal Control of Hybrid Dynamical Systems using Complementarity Constraints
Saif R. Kazi, Kexin Wang, Lorenz T. Biegler
Optimal control for switch-based dynamical systems is a challenging problem in the process control literature. In this study, we model these systems as hybrid dynamical systems wit…