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Data-driven predictive adaptive iterative learning fault-tolerant control for networked batch processes
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-25 DOI: 10.1016/j.jprocont.2025.103431
Chengyu Zhou , Li Jia , Feng Li , Jianfang Li
This article studies the fault-tolerant control (FTC) problem for a class of networked nonlinear batch processes. Firstly, the controlled batch process is converted to an adaptive data-driven model equivalent to the original system by using the iterative dynamic linearization technique, with actuator faults and fading communication phenomena considered in the control input and output channel, respectively. Among them, the fading communication phenomenon is modeled as an independent identically distributed over the iteration and time domains with known mathematical expectation and variance. Then, by fully combining the idea of predictive control and the output fading compensation algorithm, the data-driven predictive adaptive iterative learning FTC (DDPAILFTC) scheme is designed based on the dual-domain (iteration and time domains) compensation mechanism, which can avoid a short-sighted control decision and suppress the adverse effect brought by fading communication. Next, the strict convergence analysis of the presented DDPAILFTC approach is carried out by using the contraction mapping principle. The design and analysis process of the control scheme is completely data-driven and does not require any explicit model information. Ultimately, the effectiveness of the developed control method is demonstrated with a temperature tracking control example of a nonlinear batch reactor. The results show that the proposed DDPAILFTC strategy reduces the average MAE, average MSE, and calculation time by 20%, 21 %, and 31%, respectively, compared with ILFTC, and 18%, 15%, and 52%, respectively, compared with PILFTC.
{"title":"Data-driven predictive adaptive iterative learning fault-tolerant control for networked batch processes","authors":"Chengyu Zhou ,&nbsp;Li Jia ,&nbsp;Feng Li ,&nbsp;Jianfang Li","doi":"10.1016/j.jprocont.2025.103431","DOIUrl":"10.1016/j.jprocont.2025.103431","url":null,"abstract":"<div><div>This article studies the fault-tolerant control (FTC) problem for a class of networked nonlinear batch processes. Firstly, the controlled batch process is converted to an adaptive data-driven model equivalent to the original system by using the iterative dynamic linearization technique, with actuator faults and fading communication phenomena considered in the control input and output channel, respectively. Among them, the fading communication phenomenon is modeled as an independent identically distributed over the iteration and time domains with known mathematical expectation and variance. Then, by fully combining the idea of predictive control and the output fading compensation algorithm, the data-driven predictive adaptive iterative learning FTC (DDPAILFTC) scheme is designed based on the dual-domain (iteration and time domains) compensation mechanism, which can avoid a short-sighted control decision and suppress the adverse effect brought by fading communication. Next, the strict convergence analysis of the presented DDPAILFTC approach is carried out by using the contraction mapping principle. The design and analysis process of the control scheme is completely data-driven and does not require any explicit model information. Ultimately, the effectiveness of the developed control method is demonstrated with a temperature tracking control example of a nonlinear batch reactor. The results show that the proposed DDPAILFTC strategy reduces the average MAE, average MSE, and calculation time by 20%, 21 %, and 31%, respectively, compared with ILFTC, and 18%, 15%, and 52%, respectively, compared with PILFTC.</div></div>","PeriodicalId":50079,"journal":{"name":"Journal of Process Control","volume":"151 ","pages":"Article 103431"},"PeriodicalIF":3.3,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tube MPC for a two-tank system based on Eigensystem Realization Algorithm
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-25 DOI: 10.1016/j.jprocont.2025.103434
Mathias Dyvik, Damiano Rotondo
This paper presents the design of a linear, data-driven, tube-based robust model predictive control (MPC) for level control in a coupled nonlinear two-tank system. Two state-space models are identified from step responses using the eigensystem realization algorithm (ERA): one from a high-fidelity nonlinear process simulator and the other using data from the physical plant. The obtained models have states that lack physical meaning, necessitating a state observer to estimate the states from the level sensor measurements. The paper shows that a proportional-integral Kalman filter provides more robust state estimates than a standard Kalman filter and is thus used for controller implementation. The proposed ERA-based tube MPC demonstrated robust performance and constraint satisfaction compared to a conventional MPC in both simulation and experimental settings. However, it violated constraints under certain disturbances within the predefined bounds because of modeling mismatches caused by applying a linear control strategy to a nonlinear system. Addressing these violations by incorporating parametric uncertainty in the disturbance bounds and using more aggressive tuning mitigates the issue but increases conservatism and control effort. These findings offer insights into the tuning of Tube MPC for desired trade-offs in industrial applications.
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引用次数: 0
Data-driven soft constrained model predictive control for sludge bulking in wastewater treatment process
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-23 DOI: 10.1016/j.jprocont.2025.103445
Hong-Gui Han , Yan Wang , Hao-Yuan Sun , Zheng Liu , Jun-Fei Qiao
The complex causes of sludge bulking, strict system constraints, and dynamic operating conditions increase the challenges of controlling wastewater treatment process. To address this issue, a data-driven soft constrained model predictive control (DD-SCMPC) strategy is proposed, which can adaptively adjust the control law in response to the identified fault cause. First, an intelligent diagnosis algorithm is utilized to identify the key cause variable according to the relative reconstruction contribution of process variables. Consequently, the priority control order of the controlled variables can be determined based on the correlation between the cause variable and output variables. Second, a soft constrained MPC strategy is designed to regulate the concentrations of dissolved oxygen and nitrate nitrogen in accordance with the predetermined control order, thereby avoid sludge bulking caused by abnormal process variables. The incorporation of soft constraints alleviates the strict constraints on system outputs, enhancing the adaptability of the controller. Third, a predictive control barrier function is designed to obtain an enlarged attractive domain, ensuring the stability of the system under soft constraints. Then, the feasibility and stability analysis provide theoretical support for the application of DD-SCMPC. Finally, the effectiveness of the proposed DD-SCMPC strategy is verified on the benchmark simulation model 1.
{"title":"Data-driven soft constrained model predictive control for sludge bulking in wastewater treatment process","authors":"Hong-Gui Han ,&nbsp;Yan Wang ,&nbsp;Hao-Yuan Sun ,&nbsp;Zheng Liu ,&nbsp;Jun-Fei Qiao","doi":"10.1016/j.jprocont.2025.103445","DOIUrl":"10.1016/j.jprocont.2025.103445","url":null,"abstract":"<div><div>The complex causes of sludge bulking, strict system constraints, and dynamic operating conditions increase the challenges of controlling wastewater treatment process. To address this issue, a data-driven soft constrained model predictive control (DD-SCMPC) strategy is proposed, which can adaptively adjust the control law in response to the identified fault cause. First, an intelligent diagnosis algorithm is utilized to identify the key cause variable according to the relative reconstruction contribution of process variables. Consequently, the priority control order of the controlled variables can be determined based on the correlation between the cause variable and output variables. Second, a soft constrained MPC strategy is designed to regulate the concentrations of dissolved oxygen and nitrate nitrogen in accordance with the predetermined control order, thereby avoid sludge bulking caused by abnormal process variables. The incorporation of soft constraints alleviates the strict constraints on system outputs, enhancing the adaptability of the controller. Third, a predictive control barrier function is designed to obtain an enlarged attractive domain, ensuring the stability of the system under soft constraints. Then, the feasibility and stability analysis provide theoretical support for the application of DD-SCMPC. Finally, the effectiveness of the proposed DD-SCMPC strategy is verified on the benchmark simulation model 1.</div></div>","PeriodicalId":50079,"journal":{"name":"Journal of Process Control","volume":"151 ","pages":"Article 103445"},"PeriodicalIF":3.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adaptive fuzzy-bilateral prescribed performance control for nonlinear systems with uncertain time delays and its application
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-21 DOI: 10.1016/j.jprocont.2025.103435
Qiyu Yang , Litian Wei , Ming Li
For a class of nonlinear systems with uncertain time delays, this paper proposes an adaptive fuzzy-bilateral prescribed performance control method. The bilateral prescribed performance control introduces a novel barrier function that provides a more constrained allowable set for system output errors, circumventing potential performance degradation caused by limited performance curve parameter settings. An adaptive fuzzy logic system parameter tuning strategy is designed to approximate unknown nonlinear functions and satisfy the prerequisite conditions of bilateral prescribed performance control. The synergistic integration of these two approaches addresses critical challenges in industrial scenarios, such as temperature control systems where system model parameters are difficult to obtain and control parameters require manual online adjustment in response to environmental variations. Finally, simulation experiments and practical industrial temperature control experiments were conducted, with multiple temperature target groups used to verify heating and cooling control performance. Experimental results demonstrate the effectiveness and superiority of the proposed method.
{"title":"Adaptive fuzzy-bilateral prescribed performance control for nonlinear systems with uncertain time delays and its application","authors":"Qiyu Yang ,&nbsp;Litian Wei ,&nbsp;Ming Li","doi":"10.1016/j.jprocont.2025.103435","DOIUrl":"10.1016/j.jprocont.2025.103435","url":null,"abstract":"<div><div>For a class of nonlinear systems with uncertain time delays, this paper proposes an adaptive fuzzy-bilateral prescribed performance control method. The bilateral prescribed performance control introduces a novel barrier function that provides a more constrained allowable set for system output errors, circumventing potential performance degradation caused by limited performance curve parameter settings. An adaptive fuzzy logic system parameter tuning strategy is designed to approximate unknown nonlinear functions and satisfy the prerequisite conditions of bilateral prescribed performance control. The synergistic integration of these two approaches addresses critical challenges in industrial scenarios, such as temperature control systems where system model parameters are difficult to obtain and control parameters require manual online adjustment in response to environmental variations. Finally, simulation experiments and practical industrial temperature control experiments were conducted, with multiple temperature target groups used to verify heating and cooling control performance. Experimental results demonstrate the effectiveness and superiority of the proposed method.</div></div>","PeriodicalId":50079,"journal":{"name":"Journal of Process Control","volume":"150 ","pages":"Article 103435"},"PeriodicalIF":3.3,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fault estimation and self-healing control for actuator fault in dissolved oxygen control of wastewater treatment
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-16 DOI: 10.1016/j.jprocont.2025.103433
Hongyang Zan , Haozhou Wang , Xinyu Yu , Hongguang Pan , Li Li
Wastewater treatment processes (WWTPs) are inherently complex, characterized by various dynamic operations such as aerobic digestion, which critically depends on maintaining optimal dissolved oxygen (DO) levels. Actuator faults in WWTPs, particularly those affecting oxygen transfer systems, can disrupt this balance, leading to inefficiencies and safety hazards. This paper addresses the issue of fault estimation and self-healing control, specifically in the presence of additive actuator faults affecting the DO regulation. First, a low-order state-space model is introduced as a mechanistic alternative to the Benchmark Simulation Model No. 1 (BSM1) to model the dynamics of WWTPs. Second, the additive actuator fault is incorporated into the system state, and an adaptive proportional-integral observer (APIO) is designed to estimate these faults. Third, a self-healing controller based on sliding-mode control (SMC) is developed to restore the system’s performance and ensure stable DO levels. Finally, the performance of the proposed strategy is evaluated through simulations, which demonstrate its ability to accurately estimate faults and effectively restore system stability in the presence of actuator failures.
废水处理工艺(WWTPs)本身非常复杂,其特点是各种动态操作,如好氧消化,而好氧消化的关键在于保持最佳的溶解氧(DO)水平。污水处理厂中的执行器故障,尤其是影响氧气传输系统的故障,会破坏这种平衡,导致效率低下和安全隐患。本文探讨了故障估计和自愈控制问题,特别是在存在影响溶解氧调节的附加执行器故障的情况下。首先,本文引入了一个低阶状态空间模型,作为 1 号基准模拟模型(BSM1)的机械替代模型,用于模拟污水处理厂的动态。其次,将加法执行器故障纳入系统状态,并设计了自适应比例积分观测器(APIO)来估计这些故障。第三,开发基于滑模控制(SMC)的自愈控制器,以恢复系统性能并确保稳定的溶解氧水平。最后,通过仿真对所提策略的性能进行了评估,结果表明该策略能够准确估计故障,并在执行器出现故障时有效恢复系统稳定性。
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引用次数: 0
Studying the effect of dynamic operation conditions on green ammonia production synthesis loop
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-16 DOI: 10.1016/j.jprocont.2025.103436
Raj Patel , Amin Soleimani Mehr , Jimena Incer Valverde , Günter Scheffknecht , Jörg Maier , Reihaneh Zohourian
The global challenges meeting hydrogen demands due to limited renewable resources urge the need for low-cost imports. Green ammonia, promising for its existing infrastructure, encounters inflexibility challenges in large-scale production with renewables. This study delves into ammonia synthesis loop flexibility amid renewable intermittencies. Utilizing an Aspen Plus® model of 1223 tonnes per day ammonia production capacity, the transient behavior under varied feed flow was investigated with Aspen Dynamics™ simulations. The findings indicated that effective strategies enabled managing a minimum load of 10 % or lower under stoichiometric conditions, constrained by the electrolysis system's lower load. The study also concluded that the ammonia synthesis unit's 20 %/hr feed flow ramp rate is restricted by the thermal cycling of the reactor catalyst; the consequences of fast ramp-up and ramp-down of the operational parameters such as feed flow or stoichiometric ratio are the primary limits in green ammonia production or dynamic operation of the plant.
{"title":"Studying the effect of dynamic operation conditions on green ammonia production synthesis loop","authors":"Raj Patel ,&nbsp;Amin Soleimani Mehr ,&nbsp;Jimena Incer Valverde ,&nbsp;Günter Scheffknecht ,&nbsp;Jörg Maier ,&nbsp;Reihaneh Zohourian","doi":"10.1016/j.jprocont.2025.103436","DOIUrl":"10.1016/j.jprocont.2025.103436","url":null,"abstract":"<div><div>The global challenges meeting hydrogen demands due to limited renewable resources urge the need for low-cost imports. Green ammonia, promising for its existing infrastructure, encounters inflexibility challenges in large-scale production with renewables. This study delves into ammonia synthesis loop flexibility amid renewable intermittencies. Utilizing an Aspen Plus® model of 1223 tonnes per day ammonia production capacity, the transient behavior under varied feed flow was investigated with Aspen Dynamics™ simulations. The findings indicated that effective strategies enabled managing a minimum load of 10 % or lower under stoichiometric conditions, constrained by the electrolysis system's lower load. The study also concluded that the ammonia synthesis unit's 20 %/hr feed flow ramp rate is restricted by the thermal cycling of the reactor catalyst; the consequences of fast ramp-up and ramp-down of the operational parameters such as feed flow or stoichiometric ratio are the primary limits in green ammonia production or dynamic operation of the plant.</div></div>","PeriodicalId":50079,"journal":{"name":"Journal of Process Control","volume":"150 ","pages":"Article 103436"},"PeriodicalIF":3.3,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonlinear, robust, interval state estimation for distribution systems based on fixed-point expansion considering uncertainties
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-16 DOI: 10.1016/j.jprocont.2025.103427
Zhengmei Lu , Hong Tan , Mohamed A. Mohamed
Interval state estimation (ISE) is widely used due to its ability to handle uncertainty and the simple parameters that are required. Existing ISE methods have some problems that need improvements, such as conservatism of results, lack of completeness, and limitations in the error range. Therefore, this paper proposes a nonlinear robust ISE method for distribution systems. First, the quadratic Taylor-series expansions of measurement equations are transformed into fixed-point expansions without truncation errors, which reduces errors introduced by measurement conversion and the approximation process. Second, an exponentially weighted least-squares ISE model considering power-flow constraints is proposed based on the fixed-point expansion (FPE), which avoids calculating inverse matrices of the Jacobian matrices containing interval numbers and improves the estimation accuracy. To improve the model’s robustness, an interval weight correction strategy is proposed. Then, the interval Taylor-series method is used to calculate the range of interval functions to reduce the expansion of the interval arithmetic, thereby obtaining narrower intervals for the state variables. Finally, based on an analysis of the 34-bus and the 123-bus systems, it can be seen that the proposed method has good performance for different error ranges and poor measurement ranges.
{"title":"Nonlinear, robust, interval state estimation for distribution systems based on fixed-point expansion considering uncertainties","authors":"Zhengmei Lu ,&nbsp;Hong Tan ,&nbsp;Mohamed A. Mohamed","doi":"10.1016/j.jprocont.2025.103427","DOIUrl":"10.1016/j.jprocont.2025.103427","url":null,"abstract":"<div><div>Interval state estimation (ISE) is widely used due to its ability to handle uncertainty and the simple parameters that are required. Existing ISE methods have some problems that need improvements, such as conservatism of results, lack of completeness, and limitations in the error range. Therefore, this paper proposes a nonlinear robust ISE method for distribution systems. First, the quadratic Taylor-series expansions of measurement equations are transformed into fixed-point expansions without truncation errors, which reduces errors introduced by measurement conversion and the approximation process. Second, an exponentially weighted least-squares ISE model considering power-flow constraints is proposed based on the fixed-point expansion (FPE), which avoids calculating inverse matrices of the Jacobian matrices containing interval numbers and improves the estimation accuracy. To improve the model’s robustness, an interval weight correction strategy is proposed. Then, the interval Taylor-series method is used to calculate the range of interval functions to reduce the expansion of the interval arithmetic, thereby obtaining narrower intervals for the state variables. Finally, based on an analysis of the 34-bus and the 123-bus systems, it can be seen that the proposed method has good performance for different error ranges and poor measurement ranges.</div></div>","PeriodicalId":50079,"journal":{"name":"Journal of Process Control","volume":"150 ","pages":"Article 103427"},"PeriodicalIF":3.3,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Data-driven second-order iterative sliding mode control for cyber–physical systems under prescribed performance and DoS attacks 规定性能和 DoS 攻击下网络物理系统的数据驱动二阶迭代滑动模式控制
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-11 DOI: 10.1016/j.jprocont.2025.103422
Yijie Yang , Dong Liu , Xin Wang , Zhujun Wang
This work investigates the second-order iterative sliding mode control problem of cyber–physical systems under prescribed performance and denial of service (DoS) attacks. An equivalent model of the controlled system is derived utilizing the dynamic linearization methodology, solely relying on process data. Through the novel tangent-type error transformation function, the confined error is equivalently transformed into the unconfined error. On this basis, a new second-order sliding function is devised to ensure that the error converges to the prearranged asymmetric region from the traditional time axis to the iteration axis. Based upon historical iterative data, an attack compensation mechanism is constructed to eliminate the negative impacts of attacks on the sensor. Finally, the effectiveness of the presented approach is validated via two examples.
{"title":"Data-driven second-order iterative sliding mode control for cyber–physical systems under prescribed performance and DoS attacks","authors":"Yijie Yang ,&nbsp;Dong Liu ,&nbsp;Xin Wang ,&nbsp;Zhujun Wang","doi":"10.1016/j.jprocont.2025.103422","DOIUrl":"10.1016/j.jprocont.2025.103422","url":null,"abstract":"<div><div>This work investigates the second-order iterative sliding mode control problem of cyber–physical systems under prescribed performance and denial of service (DoS) attacks. An equivalent model of the controlled system is derived utilizing the dynamic linearization methodology, solely relying on process data. Through the novel tangent-type error transformation function, the confined error is equivalently transformed into the unconfined error. On this basis, a new second-order sliding function is devised to ensure that the error converges to the prearranged asymmetric region from the traditional time axis to the iteration axis. Based upon historical iterative data, an attack compensation mechanism is constructed to eliminate the negative impacts of attacks on the sensor. Finally, the effectiveness of the presented approach is validated via two examples.</div></div>","PeriodicalId":50079,"journal":{"name":"Journal of Process Control","volume":"150 ","pages":"Article 103422"},"PeriodicalIF":3.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temperature control system based on Active Disturbance Rejection Control and its parameter optimization in large-sized monolithic silicon epitaxy equipment reactor
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-10 DOI: 10.1016/j.jprocont.2025.103430
Jiazhe Suo , Bo Jin , Lingfeng Zhu , Wenjie Shen
The temperature regulation of large-sized monolithic silicon epitaxial reactors presents a significant technical challenge, primarily attributed to its nonlinearities, significant time delays, and cross-regional coupling interference within the multi-zone heating process. To speed up the heating process while minimizing overshoot, this paper proposes a temperature control system based on Active Disturbance Rejection Control (ADRC). Additionally, this paper proposes a parameter optimization method based on orthogonal experimental design. The ADRC controller's parameters were optimized in the Simulink simulation model, and the controller's performance in temperature control was compared to that of the conventional PID controller following the same parameter optimization. The simulation results demonstrate that under the condition of maintaining overshoot within 1 % of the setting value, the ADRC-based temperature control system achieves stabilization within the ± 1 % error band of the setting value in 53.42 % of the time required by the PID-based temperature control system. Finally, experiments prove that the temperature control system with ADRC controllers can implement precise temperature control and shows good temperature control performance.
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引用次数: 0
Satisficing Infinite-Horizon Model Predictive Control
IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-04-09 DOI: 10.1016/j.jprocont.2025.103424
Marcelo Lopes de Lima , Eduardo Camponogara , Darci Odloak , Jean Panaioti Jordanou
The Satisficing Infinite-Horizon MPC (S-IHMPC) combines two independent developments, namely the Satisficing MPC and the Infinity Horizon MPC. From this combination, results an industrial-grade controller with a tuning process based on local performances instead of weights, making the tuning process much easier. The controller also guarantees nominal stability, presents zone control, and is amenable to unreachable set points. The modeling is suitable for actual industrial practice since it starts from transfer functions, for which the given realization eases the design of stability conditions.
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引用次数: 0
期刊
Journal of Process Control
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