Efficient Economic Model Predictive Control of Water Treatment Process with Learning-based Koopman Operator

Fuente: arXiv
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Main Authors: Han, Minghao, Yao, Jingshi, Law, Adrian Wing-Keung, Yin, Xunyuan
Format: Preprint
Published: 2024
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author Han, Minghao
Yao, Jingshi
Law, Adrian Wing-Keung
Yin, Xunyuan
author_facet Han, Minghao
Yao, Jingshi
Law, Adrian Wing-Keung
Yin, Xunyuan
contents Used water treatment plays a pivotal role in advancing environmental sustainability. Economic model predictive control holds the promise of enhancing the overall operational performance of the water treatment facilities. In this study, we propose a data-driven economic predictive control approach within the Koopman modeling framework. First, we propose a deep learning-enabled input-output Koopman modeling approach, which predicts the overall economic operational cost of the wastewater treatment process based on input data and available output measurements that are directly linked to the operational costs. Subsequently, by leveraging this learned input-output Koopman model, a convex economic predictive control scheme is developed. The resulting predictive control problem can be efficiently solved by leveraging quadratic programming solvers, and complex non-convex optimization problems are bypassed. The proposed method is applied to a benchmark wastewater treatment process. The proposed method significantly improves the overall economic operational performance of the water treatment process. Additionally, the computational efficiency of the proposed method is significantly enhanced as compared to benchmark control solutions.
format Preprint
id arxiv_https___arxiv_org_abs_2405_12478
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Efficient Economic Model Predictive Control of Water Treatment Process with Learning-based Koopman Operator
Han, Minghao
Yao, Jingshi
Law, Adrian Wing-Keung
Yin, Xunyuan
Systems and Control
Used water treatment plays a pivotal role in advancing environmental sustainability. Economic model predictive control holds the promise of enhancing the overall operational performance of the water treatment facilities. In this study, we propose a data-driven economic predictive control approach within the Koopman modeling framework. First, we propose a deep learning-enabled input-output Koopman modeling approach, which predicts the overall economic operational cost of the wastewater treatment process based on input data and available output measurements that are directly linked to the operational costs. Subsequently, by leveraging this learned input-output Koopman model, a convex economic predictive control scheme is developed. The resulting predictive control problem can be efficiently solved by leveraging quadratic programming solvers, and complex non-convex optimization problems are bypassed. The proposed method is applied to a benchmark wastewater treatment process. The proposed method significantly improves the overall economic operational performance of the water treatment process. Additionally, the computational efficiency of the proposed method is significantly enhanced as compared to benchmark control solutions.
title Efficient Economic Model Predictive Control of Water Treatment Process with Learning-based Koopman Operator
topic Systems and Control
url https://arxiv.org/abs/2405.12478