对于具有执行器不确定性的空间操纵器的固定时间自适应性预定的性能滑动模式控制器
Sheng Gao1, Wei Zhang1, Shaoqian Li2
1State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China.
这项研究引入了空间操纵器的固定时间自适应控制,确保快速,准确的跟踪,尽管干扰和故障. 这种新的方法保证了系统的稳定性和性能,并通过模拟和实验来验证.
科学领域:
- 机器人和控制系统 机器人和控制系统
- 航空航天工程 航空航天工程
- 应用数学 应用数学 应用数学
背景情况:
- 空间操纵器面临复杂的挑战,包括外部干扰,不确定性和执行器故障.
- 在这些条件下实现精确而强大的跟踪控制对于任务的成功至关重要.
- 现有的控制方法可能难以实现快速融合和保证性能限制.
研究的目的:
- 开发一个固定时间的自适应跟踪控制方案,对空间操纵器有规定的性能.
- 在各种运营挑战下确保过渡性和稳定性性能.
- 为了增强对未知的干扰,不确定性和执行器故障的稳定性.
主要方法:
- 引入了针对性能极限的增强规定的性能功能.
- 基于跟踪错误的非单一快速终端滑动模式表面的构建.
- 开发基于模型的固定时间控制策略,然后制定适应性法则来估计和补偿不确定性.
- 使用利亚普诺夫理论进行严格的稳定性分析.
主要成果:
- 拟议的控制方案实现了快速融合和高跟踪精度.
- 证明了对边界外部干扰,参数不确定性和执行器故障的强度.
- 固定的时间稳定性和规定的性能合规性被严格证明.
- 通过数值模拟和空间操纵器上的实验结果验证的有效性.
结论:
- 开发的固定时间自适应性规定的性能控制是有效的和优越的空间操纵器.
- 该方法成功地解决了诸如干扰,不确定性和故障等挑战.
- 它为高性能太空机器人操作提供了一个有前途的解决方案.
更多相关视频
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
09:01Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
Published on: April 4, 2017
相关概念视频
Controller Configurations
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Time-Domain Interpretation of PD Control
Consider the example of control of motor torque. Initially, a positive...
Linear Approximation in Time Domain
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
Feedback control systems
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
PD Controller: Design
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
One-Degree-of-Freedom System
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
