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Chinese control and Decision Conference, CCDC

作者： Jiahui Wang Wen Zuo Yabin Gao Jianxing Liu Ligang Wu Harbin Engineering University Harbin China Department of Control Science and Engineering Harbin Institute of Technology Harbin China

ISBN: (纸本)9781665478977

This paper deals with the problem of mode-asynchrony sliding-mode variable-structure control (VSC) under event-triggered communication for continuous-time Markov jump systems with hidden modes. The hidden-mode Markov jump systems with both the matched and mismatched uncertainties are formulated. In terms of the event-triggered communication from the sensor to the controller, static and dynamic mechanisms based on periodic/aperiodic sampling are designed for mitigating the burden of communication. In this case of mode-asynchrony and aperiodic sampling state measurements, new sliding-mode VSC laws integrated with an interval type-2 fuzzy neural network are designed. The interval type-2 fuzzy neural network is used to approximate matched uncertainty. Moreover, the analysis of the finitetime practical stability of the control system is presented based on the Lyapunov function approach. Finally, a set of simulation results are given to show the validity and practicability of the present results.

关键词： Fuzzy control Uncertainty Simulation Neural networks Helicopters Markov processes control systems

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Sensor fault detection under asynchronous switched systems with state delays

Sensor fault detection under asynchronous switched systems w...

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Fault Detection, Supervision and Safety for Technical Processes (SAFEPROCESS), CAA Symposium on

作者： Shafqat Ali Yuchen Jiang Hao Luo Muhammad Taskeen Raza Faizan Shahid Shah Faisal Control and Simulation Center Harbin Institute of Technology Harbin China Department of Electrical Engineering Lahore College for Women University Lahore Pakistan

This study aims to develop a technique for detecting sensor faults in continuous-time asynchronous switched time- delay systems using Mode Dependent Average Dwell Time (MDADT) switching. Introducing a sliding mode observer for fault detection aims to generate a residual signal. In complex asynchronous switched systems, the observer lags behind the corresponding subsystem or mode, resulting in matched and mismatched periods. Furthermore, the presence of time delays in asynchronous switched systems, such as delays between subsystems and observer lag time, and state delays, adds to the complexity of the problem. A Lyapunov function is chosen for matched and mismatched periods combined with MDADT to achieve global uniform asymptotic stability. By using the H ∞ performance index, the presence of faults mitigates the influence of residual error signals. By establishing adequate conditions, linear matrix inequalities can be derived, and observer parameters and matrix parameters can be designed accordingly. In conclusion, an illustrative numerical example demonstrates the efficacy of the proposed technique.

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Dual-Mode Disturbance Observer-based Predictive control with Harmonic Current Suppression for Dual Three-Phase Permanent Magnet Synchronous Motor Drives

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IEEE Journal of Emerging and Selected Topics in Power Electronics 2025年

作者： Liu, Huanli Lin, Weiyang Liu, Zhitai Yu, Xinghu Buccella, Concettina Cecati, Carlo Harbin Institute of Technology Research Institute of Intelligent Control and Systems Harbin150001 China Ningbo Institute of Intelligent Equipment Technology Company Ltd Ningbo315200 China University of L'Aquila DigiPower srl Department of Information Engineering Computer Science and Mathematics L'Aquila67100 Italy

Dual three-phase permanent magnet synchronous motor drives have gained considerable interest in those applications requiring high levels of reliability. However, they often suffer from high-order harmonic currents and mismatch of motor parameters, resulting in degraded performance and reduced efficiency. Therefore, this paper proposes a dual-mode disturbance observer based model predictive current controller. Not only direct current disturbances caused by motor parameters, but also alternating current disturbances caused by high-order harmonic currents are explicitly modeled and estimated to achieve improved model accuracy. In addition, the observer parameter design is given in detail. Furthermore, a generalized predictive current controller with the integration of the proposed observer is developed to provide satisfactory harmonic current suppression capability and parameter robustness simultaneously. Proof of the stability with the proposed controller is given and several experiments and comparisons demonstrate the effectiveness of the proposed method. © 2013 IEEE.

关键词： Permanent magnets

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Non-Singular Fast Terminal Sliding Mode control with Super-Twisting ESO for Spacecraft Formation Flying Systems

Non-Singular Fast Terminal Sliding Mode Control with Super-T...

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Chinese Automation Congress (CAC)

作者： Yufei Li Feilong Tang Xiaoqing Zhong Zhihua Xiang Yinhao Ju Baizheng Huan School of Aerospace Engineering Beijing Institute of Technology Beijing China Department of Control Science and Engineering Harbin Institute of Technology Harbin China China Academy of Space Technology Institute of Telecommunication Satellite Beijing China

In this article, we analyze how spacecraft formation can save more fuel and achieve more accurate relative position motion in the configuration control under the influence of external disturbances and perturbations. A non-singular fast terminal sliding mode controller(NFTSMC) combined with Super-Twisting extended state observer(STESO) is proposed for disturbance rejection control of spacecraft formation configuration. In this paper, we will establish the kinematics model of spacecraft relative motion, and linearize this model. Then, the convergence of STESO and the stability of the combination of NFTSMC and STESO are analyzed respectively. Finally, sufficient numerical simulations will be provided to verify the feasibility of the algorithm.

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Global Trajectory Planning for Autonomous Race-Car with Vehicle Dynamics Model-Based Optimization

Global Trajectory Planning for Autonomous Race-Car with Vehi...

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Conference on Vehicle control and Intelligence (CVCI)

作者： Qianhong Tang Hongliang Zhou HaiFeng Liu Weiwei Miao Guangqiang Lyu Control Science and Engineering Harbin Institute of Technology Harbin China Chassic Department FAW Group NBD HQ Changchun China Deparetment of Design NingboTech Univercity Ningbo China

ISBN: (数字)9798331504892

ISBN: (纸本)9798331504908

The trajectory of a race car has a significant impact on the lap time. Therefore, optimizing the racing trajectory is a crucial aspect of winning a race. This paper presents a global optimization method based on a vehicle dynamics model to address this issue. A global method considers all parts of the track and can achieve a better lap time than methods that only take one part of track into account. In this study, a more complex vehicle dynamics model is used to represent the actual racing vehicle at high velocities or at its handling limits. By incorporating constraints in critical dynamics states, this method could also be altered to simulate different vehicles, improve lap time, and generate a safe trajectory when the model does not match the real track condition well.

关键词： Trajectory planning Optimization methods Trajectory Nonlinear dynamical systems Automobiles Vehicle dynamics

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High Precision SoC Estimation of LiFePO4 Blade Batteries Using Improved OCV-Based PNGV Model

High Precision SoC Estimation of LiFePO4 Blade Batteries Usi...

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Annual Conference of Industrial Electronics Society

作者： Zhen Tao Zhenyu Zhao Fei Fan Huamin Jie Yongqi Chang Kye Yak See School of Electrical and Electronic Engineering Nanyang Technological University Singapore Department of Control Science and Engineering Harbin Institute of Technology China

The state-of-charge (SoC) stands as a pivotal measure for ascertaining a battery's remaining capacity. Accurate SoC estimations can meaningfully enhance a battery's operational longevity, fortify safety standards, and enrich user experience. This paper presents an improved open circuit voltage (OCV)-based partnership for a new generation of vehicle (PNGV) model, specifically tailored for estimating the SoC of LiFePO4 blade batteries. These batteries are distinctively characterized by their advantages in safety, energy density, and thermal management. The proposed model uniquely integrates the SoC-dependent property of the battery's internal resistance, facilitating a marked improvement in estimation accuracy over existing PNGV models. Experimental results underscore the capability and effectiveness of the proposed model in estimating real-time discharging curves, achieving a remarkably low relative error rate of 0.85%.

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Improved Adaptive-Gain Super-Twisting Sliding Mode control of Transmission Line Inspection UAVs

Improved Adaptive-Gain Super-Twisting Sliding Mode Control o...

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Chinese Automation Congress (CAC)

作者： Kunpeng Zhang Zhuang Kang Lei Gu Wenlong Li Xiaoning Shen Yabin Gao Yichun Power Supply Company State Grid Heilongjiang Electric Power Company Limited Yichun China Department of Control Science and Engineering Harbin Institute of Technology Harbin China

ISBN: (数字)9798350368604

ISBN: (纸本)9798350368611

This paper presents an improved adaptive-gain super-twisting sliding mode control method for transmission line inspection unmanned aerial vehicles (UAVs) to track desired trajectories in the presence of external disturbances. A cascaded control structure is designed to compute the desired accelerations using the proposed controller, which are then utilized to determine the desired orientation and angular rates. By dynamically adjusting the gains in the controllers, the chattering problem is effectively suppressed, and the system's transient performance and robustness are significantly enhanced. Furthermore, using Lyapunov function theory, the finite-time stability of the system is rigorously proven. Finally, simulation studies demonstrate the effectiveness and superior performance of the proposed method.

关键词： Power transmission lines Inspection Stability analysis Trajectory Steady-state Vehicle dynamics Transient analysis Sliding mode control Tuning Lyapunov methods

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A Data-Driven Closed-Loop System Identification Approach Using Canonical Correlation Analysis

A Data-Driven Closed-Loop System Identification Approach Usi...

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IEEE International Conference on Industrial technology (ICIT)

作者： Xinyu Qiao Xianling Li Wei Zheng Mingyi Huo Yuchen Jiang Hao Luo Department of Control Science and Engineering Harbin Institute of Technology Harbin China Science and Technology on Thermal Energy and Power Laboratory Wuhan 2ndShip Design and Research Institute Wuhan P.R. China

ISBN: (数字)9798350340266

ISBN: (纸本)9798350340273

In this paper, a data-driven closed-loop system identification approach using canonical correlation analysis (CCA) is proposed. Based on the subspace identification methods (SIM), an auxiliary matrix is constructed by utilizing known controller information in the structure of the closed-loop system. With the help of the projection, the equivalent relationship between past input and future output is found, and the optimal identification of system parameters is implemented by using the CCA method. The proposed method solves the biased identification problem caused by the correlation between closed-loop input and noise. The main results are tested and verified via the numerical example, and the superiority of the identification estimation results of the proposed method is compared through different methods.

关键词： Correlation Parameter estimation Noise Estimation System identification Closed loop systems

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1H LF-NMR study on water migration behavior of fresh cement paste with limestone powder

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Cement and Concrete Research 2025年 191卷

作者： Qiao, Jing Zhou, Chunsheng Feng, Jingjing Miao, Miao Ji, Yanliang Gu, Linan Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education Harbin Institute of Technology Harbin150090 China Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin150090 China College of Water Conservancy and Civil Engineering Shandong Agricultural University Tai'an271018 China Department of Civil Engineering Technische Universität Berlin Berlin13355 Germany

Limestone powder (LS) with large particle sizes is widely used, but its effect on water migration behavior remains unclear. This study investigates the influence of LS and viscosity-enhancing admixtures (VEAs) on the water migration behavior and water distribution in fresh cement paste using 1H low-field nuclear magnetic resonance (LF-NMR). Results indicate that LS increases the size of water migration channels, accelerates the water migration rate, and raises the bleeding ratio, while VEAs substantially mitigate the effects of LS. Compared to polyacrylamide, cellulose ether significantly slows down the water migration rate before 40 min, thereby reducing the bleeding ratio. Additionally, relaxation times were found to decrease during bleeding and can reflect the sedimentation process. It is confirmed that the pore structure of fresh paste exhibits fractal characteristics, with the fractal dimension closely correlating with water migration rates. The underlying mechanisms and their implications on material behavior are thoroughly analyzed and discussed. © 2025 Elsevier Ltd

关键词： Limestone

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Mixed EDD and MEDD: A Low-Jerk control Method for Semi-Active Suspension 5

Mixed EDD and MEDD: A Low-Jerk Control Method for Semi-Activ...

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5th CAA International Conference on Vehicular control and Intelligence, CVCI 2021

作者： Yuan, Qing Zhou, Hongliang Chen, Songlin Liu, Zhiyuan Miao, Weiwei Harbin Institute of Technology Control Science and Engineering Harbin China China FAW Group Corporation RD Institute Chassis Department Changchun China

ISBN: (纸本)9781665408462

This paper presents a control method named "Mixed EDD and MEDD control"for semi active suspension to reduce the acceleration and acceleration rate (jerk) of the sprung mass. A MEDD (Modified Energy-Driven-Damper) control method which can suppress the jerk of sprung mass very well is first proposed in this paper via introducing the acceleration rate of the sprung mass to the performance function. It has been shown that EDD and MEDD control have complementary characteristics: EDD provides large benefits for restraining the sprung mass acceleration in low-frequency range (0-2HZ) while MEDD behave better in high-frequency range. Mixed EDD and MEDD control is then proposed which classifies the frequency range of the road profile and employs EDD and MEDD accordingly to effectively attenuate the sprung mass acceleration and acceleration rate (jerk). Using the most-used Mixed skyhook-ADD (SHADD) as the benchmark, the effectiveness and superiority of Mixed EDD and MEDD control are verified by the simulation results. © 2021 IEEE.

关键词： Acceleration

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