ISA transactions最新文献_第6页

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。

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":"https://doi.org/10.1016/j.isatra.2025.04.013","url":null,"abstract":"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.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"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":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

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。

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":"https://doi.org/10.1016/j.isatra.2025.04.009","url":null,"abstract":"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.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"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":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

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。

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。

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":"https://doi.org/10.1016/j.isatra.2025.04.017","url":null,"abstract":"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.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"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":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

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。

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":"https://doi.org/10.1016/j.isatra.2025.04.002","url":null,"abstract":"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 (Pe) and condensing pressure (Pc) 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.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"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":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

A novel global path planning method for robot based on dual-source light continuous reflection. 基于双光源连续反射的新型机器人全局路径规划方法

ISA transactions Pub Date : 2024-07-01 Epub Date: 2024-05-09 DOI: 10.1016/j.isatra.2024.05.006

Jintao Ye, Lina Hao, Hongtai Cheng, Xingchen Li

引用次数: 0

Accurate parameter identification method for coupled sub/super-synchronous oscillations for high penetration wind power systems. 高渗透率风力发电系统亚/超同步耦合振荡的精确参数识别方法。

ISA transactions Pub Date : 2024-07-01 Epub Date: 2024-05-13 DOI: 10.1016/j.isatra.2024.05.001

Dongsheng Cai, Feiyu Sun, Linlin Li, Weihao Hu, Qi Huang

{"title":"Accurate parameter identification method for coupled sub/super-synchronous oscillations for high penetration wind power systems.","authors":"Dongsheng Cai, Feiyu Sun, Linlin Li, Weihao Hu, Qi Huang","doi":"10.1016/j.isatra.2024.05.001","DOIUrl":"10.1016/j.isatra.2024.05.001","url":null,"abstract":"As the penetration of renewable energy increases to a large scale and power electronic devices become widespread, power systems are becoming prone to synchronous oscillations (SO). This event has a major impact on the stability of the power grid. The recent research has been mainly concentrated on identifying the parameters of sub-synchronous oscillation. Sub/Super synchronous oscillations (Sub/Sup-SO) simultaneously occur, increasing the difficulty in accurately identify the parameters of SO. This work presents a novel method for parameter identification that effectively handles the Sub/Sup-SO components by utilizing the Rife-Vincent window and discrete Fourier transform (DFT) simultaneously. To mitigate the impact of spectral leakage and the fence effect of DFT, we integrate the tri-spectral interpolation algorithm with the Rife-Vincent window. We use the instantaneous data of the phasor measurement unit (PMU) to identify Sub/Sup-SO-related parameters (Sub/Sup-SO damping ratio, frequency, amplitude and phase). First, the spectrum of the Sub/Sup-SO signals is analyzed after incorporating the Rife-Vincent window, and the characteristics of the Sub/Sup-SO signal are determined. Then, the signal spectrum is identified using a three-point interpolation algorithm, and the damping ratio, amplitude, frequency, and phase of the Sub/Sup-SO signals are obtained. In addition, we consider the identification accuracy of the algorithm under various complex conditions, such as the effect of Sub/Sup-SO parameter variations on parameter identification in the presence of a non-nominal frequency and noise. The proposed algorithm accurately identifies the parameters of multiple Sub/Sup-SO components and two Sub-SO components that are in close proximity. Testing with synthetic and real data demonstrates that the proposed algorithm outperforms existing methods in terms of identification accuracy, identification bandwidth, and adaptability.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":"166-180"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140960142","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

Visualized neural network-based vibration control for pigeon-like flexible flapping wings. 基于可视化神经网络的鸽类柔性拍翼振动控制。

ISA transactions Pub Date : 2024-05-28 DOI: 10.1016/j.isatra.2024.05.044

Hejia Gao, Jinxiang Zhu, Changyin Sun, Zi-Ang Li, Qiuyang Peng

{"title":"Visualized neural network-based vibration control for pigeon-like flexible flapping wings.","authors":"Hejia Gao, Jinxiang Zhu, Changyin Sun, Zi-Ang Li, Qiuyang Peng","doi":"10.1016/j.isatra.2024.05.044","DOIUrl":"https://doi.org/10.1016/j.isatra.2024.05.044","url":null,"abstract":"This study investigates pigeon-like flexible flapping wings, which are known for their low energy consumption, high flexibility, and lightweight design. However, such flexible flapping wing systems are prone to deformation and vibration during flight, leading to performance degradation. It is thus necessary to design a control method to effectively manage the vibration of flexible wings. This paper proposes an improved rigid finite element method (IRFE) to develop a dynamic visualization model of flexible flapping wings. Subsequently, an adaptive vibration controller was designed based on non-singular terminal sliding mode (NTSM) control and fuzzy neural network (FNN) in order to effectively solve the problems of system uncertainty and actuator failure. With the proposed control, stability of the closed loop system is achieved in the context of Lyapunov's stability theory. At last, a joint simulation using MapleSim and MATLAB/Simulink was conducted to verify the effectiveness and robustness of the proposed controller in terms of trajectory tracking and vibration suppression.The obtained results have demonstrated great practical value of the proposed method in both military (low-altitude reconnaissance, urban operations, and accurate delivery, etc.) and civil (field research, monitoring, and relief for disasters, etc.) applications.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141249139","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

Interference fading suppression with fault-tolerant Kalman filter in phase-sensitive OTDR. 在相位敏感 OTDR 中使用容错卡尔曼滤波器抑制干扰衰减。

ISA transactions Pub Date : 2024-05-10 DOI: 10.1016/j.isatra.2024.05.011

Yu Wang, Chunchen He, Waner Du, Huirong Hu, Qing Bai, Xin Liu, Baoquan Jin

{"title":"Interference fading suppression with fault-tolerant Kalman filter in phase-sensitive OTDR.","authors":"Yu Wang, Chunchen He, Waner Du, Huirong Hu, Qing Bai, Xin Liu, Baoquan Jin","doi":"10.1016/j.isatra.2024.05.011","DOIUrl":"https://doi.org/10.1016/j.isatra.2024.05.011","url":null,"abstract":"A multi-sensor information fusion algorithm based on fault-tolerant Kalman filter is proposed in phase-sensitive optical time-domain reflectometer (Φ-OTDR) system, for achieving fading-free distributed vibration sensing. Firstly, a fault-tolerant dual-core complementary array model is designed. The Rayleigh scattering signal denoising, and vibration existence judgment of localization points are carried out to obtain the differentiated frequency demodulation results of the sensing points of the dual-core fiber array. Then a fault-tolerant control strategy is used to determine the sensor weight coefficients and vibration judgment coefficients during data fusion processing, and array data fusion is carried out based on time series data using Kalman filter to realize error value identification and filling. The advantage of this method is the combination of redundant data in a complementary way to improve the system stability. The frequency response ranges from 10 Hz to 2400 Hz and the localization accuracy is 98.33%. The influence of key parameters on the frequency demodulation performance of fault-tolerant Kalman filter is discussed, and a standard deviation of 14.6 Hz and an average error of 7.6 Hz are obtained. The demodulation frequency data matrix obtained by the classical demodulation method has a demodulation error probability of 89.18%, which proves the widespread existence of demodulation errors in vibration signals. The fusion error of demodulation frequency is reduced to 0.25 Hz, the frequency demodulation accuracy reaches 100%, and the demodulation error caused by interference attenuation can be completely eliminated. This system based on fault-tolerant Kalman filter has the characteristics of simple multiplexing structure, interference fading resistance and stable demodulation performance.","PeriodicalId":94059,"journal":{"name":"ISA transactions","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140960238","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

A sensitive spectrum entropy-assisted Bayesian online anomaly inference method for bearing incipient degradation dynamic detection 用于轴承初期退化动态检测的灵敏频谱熵辅助贝叶斯在线异常推理方法

ISA transactions Pub Date : 2024-02-01 DOI: 10.1016/j.isatra.2024.02.001

Renhe Yao, Hongkai Jiang, Yunpeng Liu, Hongxuan Zhu

引用次数: 0