Article
Automation & Control Systems
Julian D. Schiller, Matthias A. Mueller
Summary: In this article, a suboptimal moving horizon estimator for nonlinear systems is proposed. The feasibility-implies-stability/robustness paradigm is transferred from model predictive control to moving horizon estimation, ensuring robust stability of the estimator. The design allows for the choice between a standard least squares approach and a time-discounted modification for improved theoretical guarantees. The proposed estimator is applied to a nonlinear chemical reactor process, showing significant improvement in estimation results with just a few iterations of the optimizer. Different solvers are employed to illustrate the flexibility of the design, and performance is compared with state-of-the-art fast moving horizon estimation schemes.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Automation & Control Systems
Melika Afshari, Mehdi Rahmani
Summary: In this study, a distributed robust moving horizon estimation (DRMHE) approach is proposed for time-varying multisensor systems affected by stochastic and norm-bounded uncertainties. The approach formulates stochastic min-max optimization problems and converts them into robust regularized least-squares problems using uncertain parameters. Closed-form solutions are obtained for estimations and the stability of the proposed estimator is investigated. Two examples are used to demonstrate the robust performance and superiority of the proposed DRMHE approach compared to existing methods.
INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING
(2023)
Article
Automation & Control Systems
Sven Knuefer, Matthias A. Mueller
Summary: In this paper, time-discounted schemes for full information estimation (FIE) and moving horizon estimation (MHE) are proposed, which are robustly globally asymptotically stable (RGAS). The authors consider general nonlinear system dynamics with nonlinear process and output disturbances. The sufficient conditions for the existence of RGAS observers are provided based on the stability result for FIE. Convergence of the estimation error is guaranteed for both FIE and MHE schemes without incorporating a priori knowledge.
Article
Computer Science, Interdisciplinary Applications
Katrin Baumgaertner, Jonathan Frey, Reza Hashemi, Moritz Diehl
Summary: The study introduces a method to reduce the computational burden in nonlinear state estimation by utilizing a variant of the Gauss-Newton algorithm, combining zero-order optimization approach, and a tailored integration method to improve computational efficiency.
COMPUTERS & CHEMICAL ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Defeng He, Chenhui Xu, Junwei Zhu, Haiping Du
Summary: This article proposes a moving horizon H-infinity estimation algorithm based on the H-infinity performance criterion to address the robust estimation problem of linear multisensor systems. The algorithm provides sufficient conditions for stability and bounded errors, while also reducing the difficulty of solving the problem by offering an approximate solution. Simulation comparison results demonstrate the effectiveness of the proposed algorithm.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Computer Science, Information Systems
Jinsung Kim, Ji-Han Kang, Jinwoo Bae, Wonhyung Lee, Kwang-Ki K. Kim
Summary: The optimization-based power system state estimation method proposed in this study, utilizing distributed computing, effectively handles constraints, noise, and disturbances, reducing the negative impacts of bad data and parametric uncertainty.
Article
Automation & Control Systems
Zihang Dong, David Angeli
Summary: This article discusses homothetic tube-based economic model predictive control synthesis for constrained linear discrete-time systems, which integrates a moving horizon estimator to achieve closed-loop stability and constraint satisfaction despite system disturbances and output measurement noise. The optimization problem designed is recursively feasible, and the adoption of homothetic tubes leads to less conservative economic performance bounds, with the closed-loop system shown to be asymptotically stable.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2021)
Article
Engineering, Chemical
Xunyuan Yin, Yan Qin, Jinfeng Liu, Biao Huang
Summary: In this paper, a data-driven constrained state estimation method for nonlinear processes is proposed. Utilizing the Koopman operator framework and extended dynamic mode decomposition algorithm, a data-driven model identification procedure is developed to establish a linear state-space model based on historic process data, allowing for effective estimation of states in a higher-dimensional space using a linear moving horizon estimation algorithm. The proposed framework is demonstrated to be effective and superior through two process examples.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Automation & Control Systems
Meriem Gharbi, Bahman Gharesifard, Christian Ebenbauer
Summary: In this article, the efficient implementation of moving horizon state estimation of constrained discrete-time linear systems is discussed. A novel iteration scheme is proposed, which uses a proximity-based formulation of the underlying optimization algorithm to reduce computational effort. Global exponential stability of the estimation errors is ensured under certain conditions. Performance guarantees, including regret upper bounds, of the iteration scheme are established. Numerical simulations showcase the stability and regret results of the proposed estimator.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Engineering, Marine
Yuchi Cao, Tieshan Li, Liying Hao
Summary: A comprehensive framework that combines moving horizon estimation (MHE) with model predictive control (MPC) is proposed to address the challenges in controller design for shipboard boom cranes. The framework considers disturbances and noise, and utilizes MHE to accurately estimate velocity information. The estimated information is then used in MPC to derive the optimal control law by solving a constrained optimal problem. The framework is verified through three typical scenarios with different disturbances and/or noises, and comparisons with other control approaches demonstrate its effectiveness.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Computer Science, Interdisciplinary Applications
Benjamin Karg, Sergio Lucia
Summary: Optimization-based methods for output-feedback control can handle multiple-input and multiple-output nonlinear systems with uncertainties and constraints. A combination of moving horizon estimation (MHE) and nonlinear model predictive control (NMPC) is powerful but requires solving two optimization problems at every sampling instant, which can be challenging. The proposed approach using deep neural networks reduces online computations and sensitivity analysis provides an approximate upper-bound for performance deviation due to approximation errors.
COMPUTERS & CHEMICAL ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Sharmin Kibria, Jinsub Kim, Raviv Raich
Summary: This study focuses on joint nonlinear state estimation with multi-period measurement vectors potentially corrupted by sparse gross errors. A nonlinear sparse optimization formulation is used for joint sparse error correction and robust state estimation, exploiting the sparsity and short-term invariance of error locations. A sequential convex approximation approach is introduced to solve the nonlinear sparse optimization problem with a convergence guarantee. An identifiability-aware version of the proposed algorithm is presented to improve the accuracy of gross error localization using a necessary rank condition for identifiable gross error matrix. The efficacy of the approach is demonstrated through application to power system nonlinear state estimation in IEEE 14-bus and 118-bus networks.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2021)
Article
Engineering, Chemical
Mahshad Valipour, Luis A. Ricardez-Sandoval
Summary: This work investigates the performance of nonlinear model predictive control and moving horizon estimation in a feedback control system with different arrival cost approximation methods and process uncertainties. The study particularly focuses on the performance of an extended Kalman filter as an arrival cost estimator for large and complex applications. Different arrival cost estimation methods were evaluated, with results showing that an appropriate arrival cost estimation method such as the extended Kalman filter is sufficient to maintain operation of challenging systems in a closed-loop framework.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Automation & Control Systems
Domenico Famularo, Giuseppe Franze, Francesco Tedesco
Summary: This paper analyzes a Fault Detection and Isolation (FDI) scheme based on moving horizon state estimation (MHE) ideas for plants modeled as uncertain linear systems subject to actuator fault occurrences. The key point is to improve the FDI capabilities of the diagnostic filter unit by exploiting the MHE approach. The design is numerically accomplished through a semidefinite programming min-max optimization problem subject to H-infinity requirements, allowing the robust MHE to handle any uncertainties. The proposed approach is then verified on a multi-area power system subject to anomalies on the power generation units.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2022)
Article
Automation & Control Systems
Lei Zou, Zidong Wang, Qing-Long Han, Donghua Zhou
Summary: This paper focuses on the moving horizon estimation issue for a type of networked nonlinear systems with a random access protocol scheduling effects. A novel nonlinear MH estimation scheme is developed to cope with the state estimation task, and sufficient conditions are established to guarantee that the estimation error is exponentially ultimately bounded in mean square.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2021)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)