检索结果-内蒙古大学图书馆

Constrained dynamic control allocation based on frequency characteristics of actuators for attitude control systems with parametric uncertainties

引用

AIRCRAFT ENGINEERING AND AEROSPACE TECHNOLOGY 2025年第4期97卷 498-509页

作者： Jing, Hongyu Ma, Kemao Harbin Inst Technol Control & Simulat Ctr Natl Key Lab Complex Syst Control & Intelligent Ag Harbin Peoples R China

PurposeIn pursuit of higher maneuverability and aerodynamic characteristics, aerodynamic configuration for an attitude control system of aircraft adopts generally an over-actuated form. The purpose of this paper is to address allocation problems of multiple actuators to improve the system rapidity and performance and simultaneously solve parameter uncertainties of the aircraft attitude control ***/methodology/approachTaking into account the respective frequency characteristics of actuators as well as position and rate constraints, the proposed method extends regular quadratic-programming control allocation by using a dynamic weighting matrix. And a robust controller, issuing a virtual control command to be allocated, is designed based on H infinity mixed sensitivity *** an attitude control system with parametric uncertainties, the proposed virtual robust controller and control allocation method is verified and the system performance is ***/valueThe proposed dynamic control allocation method is designed based on actuator dynamic characteristics and the changing rate of the virtual control command, considering some actuator constraints simultaneously. The efficiency of the attitude control system is improved and the complex multi-input and multi-output system model can be simplified.

关键词： Dynamic control allocation Actuator frequency characteristics Quadratic programming Mixed sensitivity robust control Aircraft attitude control

来源：评论

学校读者我要写书评

暂无评论

Prescribed-Time Chattering-Free Sliding Mode Guidance Law With Terminal Angle Constraint Based on Periodic Delayed Feedback

引用

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC systEMS 2025年第1期61卷 932-942页

作者： Zheng, Haoyu Zhou, Bin Ding, Yi Hao, Mingrui Harbin Inst Technol Ctr Control Theory & Guidance Technol Harbin 150001 Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin 150001 Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Beijing 100074 Peoples R China

This article proposes a prescribed-time chattering-free sliding mode guidance law with terminal angle constraint based on periodic delayed feedback. First, a prescribed-time sliding mode guidance law is presented based on a periodic delayed sliding mode surface, which can ensure the prescribed-time convergence of both the line-of-sight angular rate and the line-of-sight angle. Second, a prescribed-time extended state observer is proposed to acquire the precise disturbance estimation within the prescribed settling time. In contrast to other finite-time or fixed-time disturbance observer, the convergence time of the proposed observer is concise and easy for tuning. Finally, by incorporating the estimated disturbance into the original prescribed-time sliding mode guidance law, a composite guidance law with prescribed-time convergence is developed, where chattering is completely eliminated. In particular, the convergence time of the proposed prescribed-time extended state observer and prescribed-time sliding mode guidance law can be arbitrarily assigned and prescribed in advance. A series of numerical simulations are carried out to verify the efficacy of the proposed guidance law.

关键词： Convergence Line-of-sight propagation Numerical stability Estimation Upper bound Asymptotic stability Tuning

来源：评论

学校读者我要写书评

暂无评论

Prescribed-Time Fault-Tolerant control of Linear Time-Varying systems by Linear Time-Varying Feedback

引用

INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR control 2025年第0期 3509-3522页

作者： Dong, Jiacheng Zhou, Bin Harbin Inst Technol Ctr Control Theory & Guidance Technol Harbin Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin Peoples R China

In this paper, the prescribed-time fault-tolerant control for multiple input multiple output (MIMO) linear time-varying (LTV) systems is investigated. Both lexicographically fixed and non-lexicographically fixed LTV systems have been considered. By leveraging the special structure of the controllable canonical form and employing the properties of the parametric Lyapunov equation, a global prescribed-time fault-tolerant controller is designed. With the aid of a suitable Lyapunov-like function, it is demonstrated that the state can converge to zero within the prescribed time. The convergence time is independent of the initial condition. In addition, the designed controller is continuous, bounded, and even maintains a linear and concise form. Ultimately, the effectiveness of the controller is verified through the simulation of the elliptical orbital rendezvous system.

关键词： elliptical orbital rendezvous system fault-tolerant global prescribed-time control linear time-varying system non-lexicographically fixed

来源：评论

学校读者我要写书评

暂无评论

Event-triggered optimal control with finite-time convergence critic networks for input-constrained nonlinear systems

引用

PHYSICA SCRIPTA 2025年第1期100卷

作者： Liu, Yizhuo Ma, Kemao Harbin Inst Technol Sch Astronaut Harbin 150001 Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin 150001 Peoples R China

This paper proposes an adaptive critic design-based event-triggered optimal control method for input-constrained continuous-time nonlinear systems. Adaptive critic design is a special framework of adaptive dynamic programming that approximates the value function by a critic neural network and derives the approximate optimal control policy through analytical methods. The proposed adaptive critic design considers the control input constraints by introducing a non-quadratic cost function and employs an event-triggered mechanism to reduce the number of controller executions. Unlike the existing event-triggered adaptive critic design, this paper proposes a novel finite-time adaptive law based on regression filtering scheme. The adaptive law utilizes the error information of the network weights to ensure fast convergence to the optimal control law under the event-triggered mechanism, which improves the real-time performance of the system. Additionally, explicit bounds for each parameter in the compact set and the specific convergence time estimates are provided in the convergence analysis. Finally, the effectiveness and practicality of the proposed method for real-time online applications are validated through two simulation examples.

关键词： adaptive critic design adaptive dynamic programming event-triggered control finite-time convergence input constraints

来源：评论

学校读者我要写书评

暂无评论

Dynamic Periodic Event-Triggered Adaptive Prescribed Performance control of Uncertain Semi-Strict Feedback systems With Application

引用

IEEE TRANSACTIONS ON CIRCUITS AND systEMS I-REGULAR PAPERS 2025年

作者： Xu, Xindi Hou, Mingzhe Duan, Guangren Harbin Inst Technol Ctr Control Theory & Guidance Technol Harbin 150001 Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin 150001 Peoples R China

This paper investigates the event-based adaptive global prescribed performance control (PPC) for a class of uncertain semi-strict feedback nonlinear systems with application to the networked spacecraft simulator (NSS) system. First, to reduce the communication frequency, a novel dynamic periodic event-triggering mechanism (DPETM) is proposed. It can not only avoid continuously monitoring the event-triggering conditions and the Zeno phenomenon in mechanism, but also reduce the trigger frequency on the premise of maintaining the closed-loop system performance. Then, an event-based adaptive global prescribed performance controller is designed by using the backstepping methodology and adopting the time-varying scaling transformation and the nonlinear transformation. The proposed method can ensure that all signals of the resulted closed-loop system remain bounded, meanwhile, the tracking error is always within the predetermined range for any initial values. Finally, the effectiveness, the engineering feasibility and the advantages of the proposed control method are demonstrated by utilizing an NSS system.

关键词： Event detection Power system dynamics Nonlinear dynamical systems control systems Backstepping Uncertainty Space vehicles Monitoring Frequency control Steady-state Prescribed performance control uncertain nonlinear systems dynamic periodic event-triggered control adaptive backstepping networked spacecraft simulator

来源：评论

学校读者我要写书评

暂无评论

Stabilization of linear systems with multiple unknown time-varying input delays by linear time-varying feedback

引用

AUTOMATICA 2025年 174卷

作者： Zhou, Bin Zhang, Kai Harbin Inst Technol Ctr Control Theory & Guidance Technol Harbin 150001 Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin 150001 Peoples R China

This paper addresses the stabilization of linear systems with multiple time-varying input delays. In scenarios where neither the exact delays information nor their bound is known, we propose a class of linear time-varying state feedback controllers by using the solution to a parametric Lyapunov equation (PLE). By leveraging the properties of the solution to the PLE and constructing a time-varying Lyapunov-Krasovskii-like functional, we prove that (the zero solution of) the closed-loop system is asymptotically stable. Furthermore, this result is extended to the observer-based output feedback case. The notable characteristic of these controllers is their utilization of linear time-varying gains. Furthermore, they are designed entirely independent of any knowledge of the time delays, resulting in controllers that are exceedingly easy to implement. Finally, a numerical example demonstrates the effectiveness of the proposed approaches. (c) 2025 Published by Elsevier Ltd.

关键词： Unknown input delay Parametric Lyapunov equation Linear time-varying feedback Asymptotic stabilization

来源：评论

学校读者我要写书评

暂无评论

Fully Distributed Cooperative Output Regulation of Heterogeneous Periodic Linear Multi-agent systems With Input Saturation

引用

INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR control 2025年第8期35卷 2920-2932页

作者： Feng, Zhanpeng Zhang, Kai Jiang, Huaiyuan Zhou, Bin Harbin Inst Technol Ctr Control Theory & Guidance Technol Harbin Peoples R China Natl Key Lab Complex Syst Control Intelligent Agent Cooperat Harbin Peoples R China

This article delves into the cooperative output regulation of heterogeneous continuous-time periodic linear multi-agent systems with input saturation under undirected graphs. Leveraging characteristics inherent in the parametric differential Lyapunov equation and cooperative output regulation theory, we formulate an observer-based protocol. Specifically, we design distributed state observers for both the leader and followers, aiming to estimate the leader state and the follower state itself, respectively. Utilizing these estimated states, we propose a class of fully distributed observer-based protocols to address the considered problem. In addition, we make an extension to the reduced-order observer-based form. The most distinguishing contributions of our proposed protocols, in contrast to existing literature, lie in the fact that the considered dynamics of each agent are time-varying and have input saturation constraints. Notably, our protocols eliminate the need for global information of the network, operating in a fully distributed method. Finally, we apply the proposed control protocol to the multi-spacecraft elliptical orbit rendezvous problem.

关键词： cooperative output regulation fully distributed protocol heterogeneous multi-agent systems input saturation periodic linear system

来源：评论

学校读者我要写书评

暂无评论

Fault Detection for Satellite Reaction Wheel Based on Zonotopic Set-Membership Estimation

引用

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC systEMS 2025年第2期61卷 1577-1588页

作者： Wang, Zhenhua Xu, Chi Liu, Zonglin Shen, Yi Harbin Inst Technol Dept ControlScience & Engn Harbin 150001 Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin 150001 Peoples R China Univ Kassel Control & Syst Theory EECS D-34121 Kassel Germany

A fault detection method is proposed based on zonotopic set-membership estimation to detect faults in the reaction wheel. First, considering the unknown but bound noise, a zonotope-based estimation is designed based on the nonlinear model of the reaction wheel using the mean value theorem. Then, the residuals and the adaptive threshold are based on the a priori zonotopic estimation, used to detect the fault in parameters, including the Coulomb friction torque coefficient, the bus voltage, and the motor torque coefficient. Finally, the effectiveness of the proposed method is verified by numerical simulations. The simulation results illustrate that the proposed methods can accurately detect different fault scenarios.

关键词： Wheels Torque Estimation Fault detection Satellites Motors Friction reaction wheel satellite set-membership estimation zonotope

来源：评论

学校读者我要写书评

暂无评论

Cooperative line-of-sight guidance strategy with prescribed performance and input saturation against active defensive aircraft in two-on-two engagement

引用

AERONAUTICAL JOURNAL 2025年第1336期129卷 1601-1628页

作者： Wang, X. Chao, T. Hou, M. Wang, S. Yang, M. Harbin Inst Technol Control & Simulat Ctr Harbin Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin Peoples R China Harbin Inst Technol Ctr Control Theory & Guidance Technol Harbin Peoples R China

This paper considers the guidance issue for attackers against aircraft with active defense in a two-on-two engagement, which includes an attacker, a protector, a defender and a target. A cooperative line-of-sight guidance scheme with prescribed performance and input saturation is proposed utilising the sliding mode control and line-of-sight guidance theories, which guarantees that the attacker is able to capture the target with the assistance of the protector remaining on the line-of-sight between the defender and the attacker in order to intercept the defender. A fixed-time prescribed performance function and first-order anti-saturation auxiliary variable are designed in the game guidance strategy to constrain the overshoot of the guidance variable and satisfy the requirement of an overload manoeuver. The proposed guidance strategy alleviates the influence of external disturbance by implementing a fixed-time observer and the chattering phenomenon caused by the sign function. Finally, nonlinear numerical simulations verify the cooperative guidance strategies.

关键词： cooperative guidance line-of-sight guidance input saturation prescribed performance control two-on-two engagement

来源：评论

学校读者我要写书评

暂无评论

Adaptive Iterative Learning Prescribed Performance control of Uncertain Strict-Feedback systems With Improved Parameter Estimation

引用

IEEE TRANSACTIONS ON CIRCUITS AND systEMS I-REGULAR PAPERS 2025年

作者： Fang, Leyan Hou, Mingzhe Cai, Guangbin Duan, Guangren Harbin Inst Technol Ctr Control Theory & Guidance Technol Harbin 150001 Peoples R China Natl Key Lab Complex Syst Control & Intelligent Ag Harbin 150001 Peoples R China Rocket Force Univ Engn Dept Missile Engn Xian 710025 Peoples R China

The existing adaptive iterative learning control approaches with variable constraints mainly consider the matched uncertainties and only ensure the boundedness of parameter estimation errors. In this paper, an adaptive iterative learning control (AILC) method with prescribed performance constraints and improved parameter estimations is developed for a class of uncertain nonlinear strict-feedback systems. The prescribed performance control is achieved through generating a preset error trajectory in each iteration within the performance envelope and making the error of the actual tracking error versus the preset one small enough all the time. The improvement of the parameter estimation performance is realized by reconstructing the parameter estimation errors and using them to modify the differential-difference adaptive laws. The control algorithm is designed based on the dynamic surface control method and thus free from the "differential explosion" problem. It is guaranteed via the Lyapunov theory that all signals of the closed-loop system are semi-global bounded, the system output could track the given reference trajectory with the prescribed performance in each iteration and the L-2 norms of the estimation errors are uniformly ultimately bounded along the iteration-axis. Additionally, two simulation examples illustrate the effectiveness and advantages of the proposed adaptive iterative learning control method.

关键词： Parameter estimation Uncertainty Adaptive systems Trajectory Estimation error Radar tracking Nonlinear systems Iterative learning control Explosions Closed loop systems Adaptive iterative learning control prescribed performance control dynamic surface control strict feedback systems parameter estimation

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：