ISA transactions最新文献

Distributed secure estimation for interconnected systems against eavesdropping under energy harvesting constrained encryption 能量收集约束加密下互联系统防窃听的分布式安全估计。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-19 DOI: 10.1016/j.isatra.2025.04.033

Shuqi Chen , Daniel W.C. Ho , Zhongyao Hu

引用次数: 0

Inverse reinforcement learning for discrete-time linear systems based on inverse optimal control 基于逆最优控制的离散线性系统逆强化学习。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-19 DOI: 10.1016/j.isatra.2025.04.027

Jiashun Huang, Dengguo Xu, Yahui Li, Xiang Zhang, Jingling Zhao

{"title":"Inverse reinforcement learning for discrete-time linear systems based on inverse optimal control","authors":"Jiashun Huang, Dengguo Xu, Yahui Li, Xiang Zhang, Jingling Zhao","doi":"10.1016/j.isatra.2025.04.027","DOIUrl":"10.1016/j.isatra.2025.04.027","url":null,"abstract":"<div><div>This paper mainly deals with inverse reinforcement learning (IRL) for discrete-time linear time-invariant systems. Based on input and state measurement data from expert agent, several algorithms are proposed to reconstruct cost function in optimal control problem. The algorithms mainly consist of three steps, namely updating control gain via algebraic Riccati equation (ARE), gradient descent to correct cost matrix, and updating weight matrix based on inverse optimal control (IOC). First, by reformulating gain formula of optimal control in the learner system, we present a model-based IRL algorithm. When the system model is fully known, the cost function can be iteratively computed. Then, we develop a partially model-free IRL framework for reconstructing the cost function by introducing auxiliary control inputs and decomposing the algorithm into outer and inner loop. Therefore, in the case where the input matrix is unknown, weight matrix in the cost function is reconstructed. Moreover, the convergence of the algorithms and the stability of corresponding closed-loop system have been demonstrated. Finally, simulations verify the effectiveness of the proposed IRL algorithms.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"163 ","pages":"Pages 108-119"},"PeriodicalIF":6.3,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144133326","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

Fixed-time path following control for automated ground vehicle subject to prescribed performance and lateral tire force constraint 在规定性能和轮胎侧向力约束下的自动地面车辆定时路径跟踪控制。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-17 DOI: 10.1016/j.isatra.2025.05.017

Zhongnan Wang, Zhongchao Liang

{"title":"Fixed-time path following control for automated ground vehicle subject to prescribed performance and lateral tire force constraint","authors":"Zhongnan Wang, Zhongchao Liang","doi":"10.1016/j.isatra.2025.05.017","DOIUrl":"10.1016/j.isatra.2025.05.017","url":null,"abstract":"<div><div>Large initial errors in prescribed performance control (PPC) methods are prone to generating the excessive inputs. In the context of path-following control for Automated Ground Vehicles (AGVs), such excessive inputs result in large steering angles, which can induce significant tire sideslip angles. Under these conditions, the tires may enter the nonlinear working region, generating uncontrolled lateral tire forces and potentially compromising vehicle stability. To address this issue, this paper proposes a path-following control protocol for AGVs that integrates the prescribed performance constraints with lateral tire force limitations. Specifically, the protocol constrains the lateral force of the front tires by saturating their sideslip angles, ensuring they remain within linear and safe operational thresholds to enhance vehicle stability. Furthermore, unknown parameters of tire dynamics, such as the front tires’ cornering stiffness and the norm of the unknown weights in the Radial Basis Function Neural Network (RBFNN) for the rear tires, are estimated using adaptive laws. These enhancements enable the proposed protocol to achieve path-following control objectives while mitigating vehicle instabilities caused by excessive inputs. Finally, the effectiveness of the proposed controller is validated through Hardware-in-the-Loop (HiL) tests, in which enhanced path-following performance and improved vehicle stability are demonstrated.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"163 ","pages":"Pages 280-291"},"PeriodicalIF":6.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144133212","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

Sensor fault detection and isolation based on nonlinear adaptive observers: A new approach for dealing with false alarms under partial faults 基于非线性自适应观测器的传感器故障检测与隔离：局部故障下虚警处理的新方法。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-17 DOI: 10.1016/j.isatra.2025.04.034

R.F. Escobar-Jiménez , V.M. Salinas-Cortés , L.F. De Olarte-Delgado , G. Besançon , L. Torres

{"title":"Sensor fault detection and isolation based on nonlinear adaptive observers: A new approach for dealing with false alarms under partial faults","authors":"R.F. Escobar-Jiménez , V.M. Salinas-Cortés , L.F. De Olarte-Delgado , G. Besançon , L. Torres","doi":"10.1016/j.isatra.2025.04.034","DOIUrl":"10.1016/j.isatra.2025.04.034","url":null,"abstract":"<div><div>This paper introduces a fault detection and isolation (FDI) system to diagnose faults in the sensors of an internal combustion engine (ICE). The FDI system relies on two nonlinear adaptive observers (NAOs) to execute analytical redundancy between the actual measurements and estimations. Two mathematical structures are proposed for developing the NAOs, which are used to construct a bank of observers. Such a bank produces estimations of the ratio between experimental and theoretical air–fuel ratios (lambda <span><math><mi>λ</mi></math></span>), temperature, and pressure, which are continuously compared with the sensors’ measurements, ensuring an uninterrupted diagnosis of the ICE sensors, even in case of total or partial fault. A threshold mechanism is incorporated into the FDI system, which is based on the variance analysis of residuals and the Euclidean norm of a sliding window vector to reduce false alarms during the partial faults diagnosis. The results of numerical tests with experimental data demonstrate the system’s ability to accurately detect multiple and simultaneous sensor faults while preventing false alarms.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"163 ","pages":"Pages 222-235"},"PeriodicalIF":6.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144121669","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

Self-triggered load frequency control using T-S fuzzy ADP method for unknown power systems 未知电力系统的T-S模糊ADP自触发负荷频率控制。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-16 DOI: 10.1016/j.isatra.2025.05.018

Zhongyang Ming , Huaguang Zhang , Jiayue Sun

{"title":"Self-triggered load frequency control using T-S fuzzy ADP method for unknown power systems","authors":"Zhongyang Ming , Huaguang Zhang , Jiayue Sun","doi":"10.1016/j.isatra.2025.05.018","DOIUrl":"10.1016/j.isatra.2025.05.018","url":null,"abstract":"<div><div>Frequency oscillations in interconnected power systems result from the inherent randomness of renewable energy production and fluctuating power load demands. Load frequency control (LFC) has thus emerged as a primary challenge for maintaining power system stability and security due to the synchronization requirements of the entire power grid. This paper proposes a novel approach for LFC in multi-area power systems using a self-triggered control-based adaptive dynamic programming (ADP) framework integrated with fuzzy logic systems (FLSs). First, an <span><math><msub><mi>H</mi><mi>∞</mi></msub></math></span> distributed controller is developed based on the multi-agent system (MAS) model to mitigate the effects of parameter uncertainties and load disturbances. Additionally, with the increased deployment of phase measurement units and smart meters, real-time system measurements are expected to rise significantly. This trend underscores the importance of event-triggered control (ETC) in optimizing the use of communication resources. However, general-purpose devices often lack the dedicated hardware necessary to verify triggering rules. To address this limitation, we propose a novel self-triggered control (STC) mechanism. This STC calculates the control law based on the current state to determine the next state measurement, thereby eliminating the need for continuous plant monitoring. Simulation results on a multi-area system demonstrate that the proposed adaptive approach performs effectively in frequency regulation under conditions of load disturbance and parameter uncertainty.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"163 ","pages":"Pages 76-85"},"PeriodicalIF":6.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164358","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

Distributed extended state observer design for strict-feedback nonlinear leader system 严格反馈非线性先导系统的分布扩展状态观测器设计。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-14 DOI: 10.1016/j.isatra.2025.05.015

Jixing Lv , Changhong Wang , Yonggui Kao

{"title":"Distributed extended state observer design for strict-feedback nonlinear leader system","authors":"Jixing Lv , Changhong Wang , Yonggui Kao","doi":"10.1016/j.isatra.2025.05.015","DOIUrl":"10.1016/j.isatra.2025.05.015","url":null,"abstract":"<div><div>Knowing the leader’s state and dynamics is crucial for leader-following control. This article addresses the distributed state/uncertainty estimation problem for a strict-feedback nonlinear leader system under directed communication topologies. The leader is characterized by Hölder-growing nonlinearities and matched uncertainty. A prescribed-time distributed estimation scheme composed of two distributed extended state observers (DESOs) is proposed. Each follower (observer node) receives only one-dimensional output estimates from its neighbors and at most one-dimensional output from the leader system, effectively reducing the communication load. First, a prescribed-time DESO (PTDESO) is proposed so that each follower can reconstruct the leader’s state and uncertainty at a time tightly prescribed by a single parameter, uniform to the initial conditions. Then, a high-gain DESO (HGDESO) is constructed, which achieves asymptotic convergence and maintains the observation errors in a small neighborhood of the origin after the prescribed time. Sufficient conditions for guaranteeing the convergence of the two DESOs are established. Ultimately, practical examples involving multiple manipulators and marine surface vehicles are provided to demonstrate the effectiveness of the proposed observers.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"163 ","pages":"Pages 120-130"},"PeriodicalIF":6.3,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144121668","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

Distributed adaptive optimal secondary control for AC islanded microgrid under multiple event-triggered mechanisms 多事件触发机制下交流孤岛微电网的分布式自适应最优二次控制。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-14 DOI: 10.1016/j.isatra.2025.04.036

Qin-Shuo Duan , Ze Tang , Dong Ding

引用次数: 0

Voltage control for DC microgrid under DoS attacks: A security predictive control approach DoS攻击下直流微电网电压控制：一种安全预测控制方法。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-13 DOI: 10.1016/j.isatra.2025.04.032

Tongxiang Li , Xi Wen , Jing Zhou , Shuwang Du , Bo Chen

{"title":"Voltage control for DC microgrid under DoS attacks: A security predictive control approach","authors":"Tongxiang Li , Xi Wen , Jing Zhou , Shuwang Du , Bo Chen","doi":"10.1016/j.isatra.2025.04.032","DOIUrl":"10.1016/j.isatra.2025.04.032","url":null,"abstract":"<div><div>DC microgrids are vulnerable to increasing cyber-security threats as communication technologies evolve. DoS attacks can destroy system access, thereby altering control signals and system dynamics. Although strategies such as zero-input or hold-input have been proposed to mitigate the effects of DoS attacks, these methods are not effective in ensuring immediate update of system control inputs, which has an impact on the overall system performance. To address this challenge, this study proposes a secure predictive control approach for DC microgrid voltage control under two-channel asynchronous DoS attacks. For the two-channel asynchronous DoS attacks, a security transmission scheme that fully utilizes the non-attack time period is designed to achieve timely update of control inputs. Furthermore, by constructing an improved secure controller based on prediction theory and active compensation mechanism, this study effectively compensates the packet loss caused by asynchronous attacks. By combining the secure transmission scheme and the improved secure predictive controller, this study ensures the asymptotic stability of DC microgrids under asynchronous DoS attacks. To verify the effectiveness and performance of the proposed method, this study conducts a series of simulations.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"162 ","pages":"Pages 179-186"},"PeriodicalIF":6.3,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144087118","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

Three-dimensional robust prescribed-time cooperative guidance for leader-follower strategy based on state observer: Simultaneous attack with impact angle control 基于状态观测器的领导-随从策略三维鲁棒规定时间协同制导：带冲击角控制的同步攻击。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-11 DOI: 10.1016/j.isatra.2025.05.016

Sayed Bagher Fazeliasl , Seyyed Sajjad Moosapour , Saleh Mobayen

{"title":"Three-dimensional robust prescribed-time cooperative guidance for leader-follower strategy based on state observer: Simultaneous attack with impact angle control","authors":"Sayed Bagher Fazeliasl , Seyyed Sajjad Moosapour , Saleh Mobayen","doi":"10.1016/j.isatra.2025.05.016","DOIUrl":"10.1016/j.isatra.2025.05.016","url":null,"abstract":"<div><div>This paper proposes a robust Prescribed-Time Cooperative Guidance (PTCG) method for leader-follower interceptors, enabling simultaneous attacks on maneuvering targets in Three-Dimensional (3D) space while satisfying impact angle constraint. Existing methods, such as fixed-time and finite-time approaches, due to their dependence on control parameters, are unable to arbitrarily predefine the convergence time and estimate the system states at a desired time. This limitation reduces their flexibility for application in complex operational scenarios, such as simultaneous attacks on maneuvering targets with specific constraints. To address this limitation, a robust Prescribed-Time Consensus Control (PTCC) is first designed for nominal nonlinear Multi-Agent Systems. Subsequently, a Prescribed-Time State Observer (PTSO) is introduced to derive leader states. Finally, after modeling the relative motion equations within the Line-Of-Sight (LOS) framework, using the proposed PTSO and PTCC approaches, and advanced Sliding Mode Control (SMC), robust guidance laws are presented in the LOS direction and perpendicular to it. These laws ensure that leader and followers simultaneously attack the maneuvering target at the prescribed-time with desired impact angles. Comparative simulations and experimental results validate the efficiency and effectiveness of the designed guidance laws.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"163 ","pages":"Pages 267-279"},"PeriodicalIF":6.3,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145218","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

Finite time disturbance observer-based adaptive composite control for disturbed unmanned helicopter 基于有限时间扰动观测器的受扰无人直升机自适应复合控制。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-05-11 DOI: 10.1016/j.isatra.2025.05.013

Zhaoji Wang, Shouzhao Sheng

{"title":"Finite time disturbance observer-based adaptive composite control for disturbed unmanned helicopter","authors":"Zhaoji Wang, Shouzhao Sheng","doi":"10.1016/j.isatra.2025.05.013","DOIUrl":"10.1016/j.isatra.2025.05.013","url":null,"abstract":"<div><div>In this paper, a composite control scheme integrating finite time disturbance observer (FTDO) and adaptive control is presented to solve the trajectory tracking issues of unmanned helicopters with matched and mismatched disturbances. Firstly, an FTDO is employed to accurately estimate the disturbance information within finite time, thereby mitigating the impact of lumped disturbances on the helicopter system and enhancing the anti-disturbance capability of the control scheme. Subsequently, the disturbance compensation term is incorporated into the controller, and a data-driven adaptive proportional-derivative (APD) controller is designed to track the desired signals of yaw angle and position. The introduction of the adaptive mechanism enables real-time parameter adjustment based on system data, effectively eliminating parameter deviations, improving control accuracy, and enhancing the adaptability of controller in complex environments. In addition, the disturbance estimation error is embedded into the closed-loop stability analysis, and the system stability is rigorously demonstrated using Lyapunov theory. Finally, simulation experiments compare the proposed method with improved active disturbance rejection control (ADRC) and FTDO-based continuous terminal sliding mode control (CTSMC). The results demonstrate that the proposed scheme achieves strong robustness and high control accuracy even in the presence of both matched and mismatched disturbances.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"163 ","pages":"Pages 139-150"},"PeriodicalIF":6.3,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144082942","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