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- W3010871347 abstract "Nonlinear model predictive control (NMPC) often requires real-time solution to optimization problems. However, in cases where the mathematical model is of high dimension in the solution space, e.g. for solution of partial differential equations (PDEs), black-box optimizers are rarely sufficient to get the required online computational speed. In such cases one must resort to customized solvers. This paper present a new solver for nonlinear time-dependent PDE-constrained optimization problems. It is composed of a sequential quadratic programming (SQP) scheme to solve the PDE-constrained problem in an offline phase, a proper orthogonal decomposition (POD) approach to identify a lower dimensional solution space, and a neural network (NN) for fast online evaluations. The proposed method is showcased on a regularized least-square optimal control problem for the viscous Burgers’ equation. It is concluded that significant online speed-up is achieved, compared to conventional methods using SQP and finite elements, at a cost of a prolonged offline phase and reduced accuracy." @default.
- W3010871347 created "2020-03-23" @default.
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- W3010871347 date "2019-12-01" @default.
- W3010871347 modified "2023-09-27" @default.
- W3010871347 title "Reduced Order Modeling for Nonlinear PDE-constrained Optimization using Neural Networks" @default.
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- W3010871347 doi "https://doi.org/10.1109/cdc40024.2019.9029284" @default.
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