ISA transactions最新文献

Tracking control for two-wheeled mobile robots via event-triggered mechanism.

ISA transactions Pub Date : 2024-11-26 DOI: 10.1016/j.isatra.2024.11.032

Chao Wang, Peng Shi, Imre Rudas

引用次数: 0

Analysis of proportional-resonant damping factors in the parallel operation of UPSs.

ISA transactions Pub Date : 2024-11-24 DOI: 10.1016/j.isatra.2024.11.028

Guilherme Keiel, Jeferson Vieira Flores, Luís Fernando Alves Pereira

引用次数: 0

Hybrid impulsive control for global stabilization of subfully actuated systems.

ISA transactions Pub Date : 2024-11-23 DOI: 10.1016/j.isatra.2024.11.034

Qinbo Huang, Jitao Sun, Min Zhao

引用次数: 0

State estimation of networked nonlinear systems with aperiodic sampled delayed measurement. 网络非线性系统的状态估计与非周期性采样延迟测量。

ISA transactions Pub Date : 2024-11-23 DOI: 10.1016/j.isatra.2024.11.029

Xincheng Zhuang, Yang Tian, Haoping Wang

引用次数: 0

A high-speed method for computing reachable sets based on variable-size grid. 基于可变大小网格计算可达集的高速方法。

ISA transactions Pub Date : 2024-11-22 DOI: 10.1016/j.isatra.2024.11.021

Wei Liao, Ming Tang, Yu Zhang, Taotao Liang

引用次数: 0

Fault detection and classification of motor bearings under multiple operating conditions. 多种运行条件下电机轴承的故障检测和分类。

ISA transactions Pub Date : 2024-11-20 DOI: 10.1016/j.isatra.2024.11.008

Muhammad Asim Abbasi, Shiping Huang, Aadil Sarwar Khan

{"title":"Fault detection and classification of motor bearings under multiple operating conditions.","authors":"Muhammad Asim Abbasi, Shiping Huang, Aadil Sarwar Khan","doi":"10.1016/j.isatra.2024.11.008","DOIUrl":"https://doi.org/10.1016/j.isatra.2024.11.008","url":null,"abstract":"The article presents a framework for fault detection and classification to monitor the condition of motor bearings under multiple operating conditions. The condition monitoring of motor bearings is crucial for failure prevention, as bearings are prone to failure in challenging working environments. Intelligent fault diagnosis methods driven by deep learning and model-based approaches have been widely adopted to address these concerns. However, accurately diagnosing bearing faults across varying conditions and identifying multiple fault types remains challenging. The article proposes a multitask fault detection and classification approach for health monitoring using the HUST motor bearings dataset. The evaluation using HUST motor bearing datasets demonstrates robust performance across diverse operating conditions and in the presence of multiple faults. The HUST dataset is valuable for bearing fault diagnosis due to its diverse operating conditions and inclusion of multiple fault types, offering a realistic representation of fault scenarios derived from real bearing experiments. This methodology enhances the safety and reliability of mechanical equipment, with adaptability to various rotating scenarios.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142735433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Event-triggered fault-tolerant tracking control for multiagent systems under actuator/sensor faults.

ISA transactions Pub Date : 2024-11-19 DOI: 10.1016/j.isatra.2024.11.012

Zhengyu Ye, Ziquan Yu, Bin Jiang, Yuehua Cheng

引用次数: 0

Dynamic event-triggered tracking control for high-order nonlinear systems with time-varying irregular full-state constraints and input saturation.

ISA transactions Pub Date : 2024-11-19 DOI: 10.1016/j.isatra.2024.11.015

Yan Jiang, Zhong Guo

{"title":"Dynamic event-triggered tracking control for high-order nonlinear systems with time-varying irregular full-state constraints and input saturation.","authors":"Yan Jiang, Zhong Guo","doi":"10.1016/j.isatra.2024.11.015","DOIUrl":"https://doi.org/10.1016/j.isatra.2024.11.015","url":null,"abstract":"This paper investigates the unified tracking control problem for a class of high-order nonlinear systems with 7 kinds of irregular state constraints and input saturation based on the dynamic event-triggered mechanism. The irregular state constraints exist in practical systems, including time-varying constraints, alternation between positive and negative bounds, adding/removing constraints during system operation, and the state of the system being constrained only by the upper/lower boundaries. Auxiliary constraint boundaries are introduced to deal with these irregular state constraints. This unified method allows different auxiliary constrained boundaries in response to specific circumstances, without affecting the controller's structure. Nonlinear transformed functions (NTFs) are used to eliminate the feasibility condition of barrier Lyapunov functions (BLFs) methods. Subsequently, based on the dynamic event-triggered mechanism and adding a power integrator technique, an event-triggered controller is designed to effectively reduce communication burden and energy consumption between the controller and the actuator. Finally, a simulation example and a practical example are given to verify the effectiveness of the proposed unified control method.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142752722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 safe fault-tolerant control for nonlinear systems based on Barrier function. 基于屏障函数的非线性系统分布式自适应安全容错控制。

ISA transactions Pub Date : 2024-11-19 DOI: 10.1016/j.isatra.2024.11.011

Min Zhang, Xiangbin Liu, Hongye Su

引用次数: 0

Learning-based optimal boundary control for parabolic distributed parameter system with actuator dynamics.

ISA transactions Pub Date : 2024-11-18 DOI: 10.1016/j.isatra.2024.11.013

Jingyi Sun, Biao Luo, Xiaodong Xu, Chunhua Yang

{"title":"Learning-based optimal boundary control for parabolic distributed parameter system with actuator dynamics.","authors":"Jingyi Sun, Biao Luo, Xiaodong Xu, Chunhua Yang","doi":"10.1016/j.isatra.2024.11.013","DOIUrl":"https://doi.org/10.1016/j.isatra.2024.11.013","url":null,"abstract":"Considering actuator dynamics, we investigate a coupled system of parabolic partial differential equations (PDEs) and ordinary differential equations (ODEs), developing a data-driven boundary optimal controller based on iterative learning. Notably, the boundary input appears in the ODE-style actuator dynamics, making the boundary condition reduction quite difficult. Optimizing infinite-dimensional performance indexes in coupled Hilbert spaces is not a trivial task. This work is the first to solve the optimal control problem for a coupled PDE-ODE system with actuator dynamics under Neumann boundary conditions. We equivalently reformat the coupled PDE-ODE system into a system with homogeneous boundary conditions and then derive its singular perturbation form in an infinite-dimensional space. Subsequently, by constructing critic and actor networks, we design a novel model-free iterative learning optimal control algorithm where weighted residual techniques are used. The algorithm uses a rich set of arbitrary control policies rather than limiting to evaluation policies, enhancing the exploration capability of the learning algorithm and relaxing the requirement for persistent excitation conditions. Furthermore, the uniformly asymptotic stability of the closed-loop coupled system is demonstrated in the infinite-dimensional Hilbert space for each learning iteration, not only for the final one. Finally, the effectiveness of the proposed approach is verified by simulations on the diffusion-reaction process.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142751123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0