ISA transactions最新文献_第3页

Switching event-triggered self-adjusting prescribed performance force control of electrohydraulic load simulator 开关事件触发的电液负载模拟器自调节规定性能力控制。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-23 DOI: 10.1016/j.isatra.2025.04.010

Jiafeng Li , Ruihang Ji , Hao Yan , Jiefeng Shan , Zanwei Chen

引用次数: 0

Fault detection and tolerant control with a variable-bandwidth extended state observer for electro-hydraulic servo systems with lumped disturbance and measurement noise 带有集总扰动和测量噪声的电液伺服系统的变带宽扩展状态观测器故障检测与容错控制。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-23 DOI: 10.1016/j.isatra.2025.04.013

Xing Ren , Qing Guo , Tieshan Li , Dan Jiang , Yan Shi

{"title":"Fault detection and tolerant control with a variable-bandwidth extended state observer for electro-hydraulic servo systems with lumped disturbance and measurement noise","authors":"Xing Ren , Qing Guo , Tieshan Li , Dan Jiang , Yan Shi","doi":"10.1016/j.isatra.2025.04.013","DOIUrl":"10.1016/j.isatra.2025.04.013","url":null,"abstract":"<div><div>In this study, a novel fault detection and tolerant control method are presented for electro-hydraulic servo systems (EHSS) with actuator partial loss of effectiveness (LOE) fault. Meanwhile, the parameter uncertainties, external disturbances, and output measurement noise are also considered. Firstly, we construct a new mapping function with a simple and flexible structure, and then design a variable-bandwidth extended state observer (VBESO) based on this function to estimate the states and lumped disturbance of the system. The designed VBESO can not only balance estimation accuracy and noise sensitivity, but also decouple the fault component from the lumped disturbance, thus facilitating fault detection. Subsequently, we design an adaptive law with time-varying gain that can accurately approximate the actuator LOE coefficient, and propose a stable fault detection scheme by combining the designed adaptive law, with the detection results that are less affected by changes in system states. The mutual coordination of the mentioned decoupling, adaptive law, and time-varying gain is a key feature of our method, rarely seen in other works. Furthermore, a fault-tolerant controller with the proposed VBESO and adaptive law is developed, which can guarantee that, even in the presence of the considered adverse obstacles, the hydraulic cylinder maintains high tracking accuracy and the control performance can be promptly recovered after an actuator fault occurs. Finally, the proposed method is validated by simulations and experiments, and it is compared with other controllers in different scenarios.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"162 ","pages":"Pages 287-300"},"PeriodicalIF":6.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143995623","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

Acceleration control in a dual-stage inertial stabilization system using embedded-parallel-based repetitive-peak compensation 基于嵌入式并行重复峰值补偿的双级惯性稳定系统加速度控制。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-22 DOI: 10.1016/j.isatra.2025.04.009

Zhiyong Yu , Tianrong Xu , Tao Tang

{"title":"Acceleration control in a dual-stage inertial stabilization system using embedded-parallel-based repetitive-peak compensation","authors":"Zhiyong Yu , Tianrong Xu , Tao Tang","doi":"10.1016/j.isatra.2025.04.009","DOIUrl":"10.1016/j.isatra.2025.04.009","url":null,"abstract":"<div><div>Acceleration control demonstrates high sensitivity to nonlinear vibrations in the inertial stabilized motion, usually serving as the preferred choice for observation systems in applications like space optical communications, enabling precise tracking and pointing. However, the stabilization performance is limited by the inadequate gain at mid- to high-frequencies in conventional acceleration control, as well as other nonlinear factors like flexibility and backlash. In this paper, an embedded-parallel-based stabilization methodology is proposed for an acceleration-based dual-stage inertial system to achieve additional notch shaping of the sensitivity function. The essence of this method involves implementing a repetitive controller with a low waterbed effect, paralleled with a peak compensator at a specific frequency to establish an efficient and rapid compensation structure. Relying exclusively on a repetitive controller proves effective in eliminating uncertain periodic vibrations, acting as a substitute for an infinite number of peak compensators. Incorporating an additional mid- to low-frequency peak compensator, designed based on the priori narrowband vibration spectrum, is considered an auxiliary supplement to the repetitive controller. Crucially, this parallel structure neither destabilizes the system nor imposes significant computational burden. Simulations and experiments were conducted at typical vibration frequencies of 1-4 Hz, and experimental results demonstrated a 35%–48% improvement in acceleration stabilization performance, enhancing the system’s capability to reject non-strictly periodic vibrations beyond the control bandwidth.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"162 ","pages":"Pages 243-255"},"PeriodicalIF":6.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144056128","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

Free-will arbitrary time optimization for multi-agent systems with time-varying function 具有时变函数的多智能体系统的自由意志任意时间优化。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-19 DOI: 10.1016/j.isatra.2025.04.004

Jia Wu , Wenyan Tang , Wenzhong Lei , Yongfang Xie , Touseef Ali

引用次数: 0

The interpretable health condition monitoring method of gear transmission system embedded in feature cloud-guided hypergraph structure under the extremely small-sample background 极小样本背景下嵌入特征云引导超图结构的齿轮传动系统可解释健康状态监测方法。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-18 DOI: 10.1016/j.isatra.2025.04.017

Sencai Ma , Gang Cheng , Yong Li , Huang An , Chang Liu

{"title":"The interpretable health condition monitoring method of gear transmission system embedded in feature cloud-guided hypergraph structure under the extremely small-sample background","authors":"Sencai Ma , Gang Cheng , Yong Li , Huang An , Chang Liu","doi":"10.1016/j.isatra.2025.04.017","DOIUrl":"10.1016/j.isatra.2025.04.017","url":null,"abstract":"<div><div>Addressing the condition monitoring challenges faced by gearboxes under extremely small-sample conditions, this study proposes an interpretable hypergraph discriminative embedding approach based on feature cloud augmentation. Specifically, a supervised feature learning framework based on hypergraphs is first established in this study, which effectively maps the raw health features of gearboxes into an intuitive and low-dimensional manifold space. This transformation facilitates the extraction of highly discriminative feature representations for various health conditions. Furthermore, to tackle the instability or even failure of subspace solutions during the construction of the low-dimensional manifold space in hypergraphs due to the extremely small-sample challenge, a feature cloud-based augmentation method is innovatively designed in this study. By constructing an augmented feature matrix, this strategy fundamentally alleviates the small sample constraint, thereby ensuring the effectiveness and stability of hypergraph learning. To comprehensively validate the effectiveness of the proposed method, this study conducted extensive tests and verifications on both the fault dataset from a drivetrain diagnostics simulator and practical fault monitoring data from wind turbine gearboxes. The experimental results demonstrate that the method can accurately monitor the health conditions of gearboxes under extremely small-sample conditions, significantly enhancing the reliability and safety of equipment operation.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"162 ","pages":"Pages 272-286"},"PeriodicalIF":6.3,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144039132","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

A prescribed-time functional observer for systems with unknown input 具有未知输入的系统的规定时间函数观测器

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-15 DOI: 10.1016/j.isatra.2025.03.024

Jiatong He , Jiancheng Zhang , Yan Wang , Xudong Zhao

{"title":"A prescribed-time functional observer for systems with unknown input","authors":"Jiatong He , Jiancheng Zhang , Yan Wang , Xudong Zhao","doi":"10.1016/j.isatra.2025.03.024","DOIUrl":"10.1016/j.isatra.2025.03.024","url":null,"abstract":"<div><div>This paper different from traditional approaches, proposes a novel method where the target vector <span><math><mi>z</mi></math></span> is treated as the state variable of an observer LTI system by system reformulations, which greatly facilitates the use of the classical Luenberger state observer to address the prescribed-time functional observer (PTFO) design issue. Subsequently, for the newly formulated LTI system with <span><math><mi>z</mi></math></span> as the state variable, a PTFO is developed for the single-output case that is capable of accurately estimating <span><math><mi>z</mi></math></span> within a user-defined time, and is subsequently extended to the multiple-output case. More importantly, it can avoid the jumps that usually occur in Engel’s prescribed-time observers. Besides, The sufficient and necessary conditions for PTFO realization are explicitly formulated through the original system matrices, thereby enabling designers/users to conduct preliminary compatibility assessments prior to control scheme implementation. Finally, two examples are presented to demonstrate the effectiveness of the proposed method.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"161 ","pages":"Pages 88-96"},"PeriodicalIF":6.3,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904487","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 observer-based bipartite tracking consensus for nonlinear multi-agent systems with unknown sensor failures 具有未知传感器故障的非线性多智能体系统的自适应观测器二部跟踪一致性

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-15 DOI: 10.1016/j.isatra.2025.03.019

Yun Chen , Huiling Xu , Zhiping Lin , Yuqing Chen , Zhengcai Li , Jun Zhang

引用次数: 0

Distributed filtering for nonlinear time-varying systems with Byzantine attacks and innovation constraints: A FlexRay scheduling mechanism 具有拜占庭攻击和创新约束的非线性时变系统的分布式过滤：FlexRay调度机制

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-14 DOI: 10.1016/j.isatra.2025.04.005

Xueyang Meng, Yun Chen, Jianjun Bai, Yunfei Guo

{"title":"Distributed filtering for nonlinear time-varying systems with Byzantine attacks and innovation constraints: A FlexRay scheduling mechanism","authors":"Xueyang Meng, Yun Chen, Jianjun Bai, Yunfei Guo","doi":"10.1016/j.isatra.2025.04.005","DOIUrl":"10.1016/j.isatra.2025.04.005","url":null,"abstract":"<div><div>This paper focuses on the distributed filtering problem for a special type of time-varying systems undergoing stochastic nonlinearities, Byzantine attacks and innovation constraints within the finite-horizon <span><math><msub><mrow><mi>l</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>-<span><math><msub><mrow><mi>l</mi></mrow><mrow><mi>∞</mi></mrow></msub></math></span> framework. Taking into account limited network resources, a FlexRay scheduling mechanism incorporating the Round-Robin and weighted try-once-discard protocols is deployed to orchestrate transmission behaviors between sensors and remote filters. A Byzantine attack model is introduced with which the Byzantine nodes falsify the measurements by injecting certain perturbations before sharing them with neighboring nodes. The main purpose of this study is to design a distributed filter for the considered system model such that a finite-horizon <span><math><msub><mrow><mi>l</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>-<span><math><msub><mrow><mi>l</mi></mrow><mrow><mi>∞</mi></mrow></msub></math></span> performance is satisfied for the filtering error dynamics. By applying the stochastic analysis method, a sufficient condition is firstly derived to guarantee the existence of desired distributed filter that ensures the prescribed performance index, following which proper filter parameters are designed by solving a set of matrix inequalities. Subsequently, a recursive distributed filtering algorithm is presented, which is friendly for online implementation. Finally, a numerical example is carried out to illustrate the validity of the obtained theoretical results.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"161 ","pages":"Pages 145-154"},"PeriodicalIF":6.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904419","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

Synchronized optimization of chilled water temperature in compression refrigeration system based on PII-AWOA 基于PII-AWOA的压缩制冷系统冷冻水温度同步优化。

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-12 DOI: 10.1016/j.isatra.2025.04.002

Na Dong, Xianzheng Li, Changbin Li

{"title":"Synchronized optimization of chilled water temperature in compression refrigeration system based on PII-AWOA","authors":"Na Dong, Xianzheng Li, Changbin Li","doi":"10.1016/j.isatra.2025.04.002","DOIUrl":"10.1016/j.isatra.2025.04.002","url":null,"abstract":"<div><div>The widespread adoption of air conditioning systems has heightened concerns over energy consumption. Despite extensive research on optimizing compression refrigeration systems, achieving global optimization remains challenging. This paper addresses this issue by proposing a novel optimization strategy for vapor compression refrigeration systems. Central to this strategy is the optimization of chilled water temperature, a critical factor influencing overall system efficiency. This variable is synchronized with evaporating pressure (<span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span>) and condensing pressure (<span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>c</mi></mrow></msub></math></span>) to achieve simultaneous optimal settings. Simulation results underscore the efficacy of this approach in significantly reducing energy consumption during steady-state operation. Moreover, an Adaptive Whale Optimization Algorithm based on Population Information Interactions (PII-AWOA) is developed to enhance optimization performance. Firstly, a population information utilization strategy is designed to improve the selection of optimal individuals in the original algorithm. In addition, adaptive measures are introduced to equalize the exploration and exploitation capabilities of the algorithm. Finally, individual neighborhoods are divided within the population, enabling ordinary individuals to utilize the information of others in their neighborhood, thereby realizing inter-individual information interaction. Experimental results indicate that the PII-AWOA algorithm demonstrates superior precision in convergence on multiple test functions and effectively mitigates the risk of local minima. Comparative analyses with the ZOA algorithm highlight the superior convergence speed and enhanced energy-saving capabilities of the proposed PII-AWOA algorithm.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"162 ","pages":"Pages 198-208"},"PeriodicalIF":6.3,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144035018","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 neural fault-tolerant tracking control for state-constrained systems subject to multiple power drift faults 多功率漂移故障状态约束系统的自适应神经容错跟踪控制

IF 6.3 2区计算机科学

ISA transactions Pub Date : 2025-04-11 DOI: 10.1016/j.isatra.2025.03.016

Yadong Yang , Xuan Qiu , Qikun Shen

{"title":"Adaptive neural fault-tolerant tracking control for state-constrained systems subject to multiple power drift faults","authors":"Yadong Yang , Xuan Qiu , Qikun Shen","doi":"10.1016/j.isatra.2025.03.016","DOIUrl":"10.1016/j.isatra.2025.03.016","url":null,"abstract":"<div><div>The adaptive neural fault-tolerant control (FTC) for state-constrained systems containing novel sensor and actuator faults is investigated in this article. This work considers not only common actuator bias and gain faults, but also a novel type of fault caused by the power drift of system, namely the power drift faults. In addition, sensor faults in the form of unknown power drifts are also considered in this work. To compensate the impact of multiple power drift faults, a novel controller is established by introducing new auxiliary signals. The radial basis function neural networks (RBFNNs) are employed to resolve some uncertain functions and reduce the computational complexity. By combining the backstepping approach and barrier Lyapunov functions, a new adaptive FTC algorithm is developed. Based the presented controller, all signals in this system remain semi-globally bounded and the control error is guided to a small range near zero. Simultaneously, system constraints are not violated. At last, a simulation experiment is performed to confirm the validity and feasibility of the developed algorithm.</div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"161 ","pages":"Pages 66-72"},"PeriodicalIF":6.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904485","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