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Updated: Jan 9, 2026

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
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基于预定义的时间延长状态观察者的操纵器的滑动模式容错控制

Chunwu Yin1, Zilan Zhao1, Pei Yi1

  • 1College of Information and Control Engineering, Xi'an university of Architecture and Technology, Xi'an, Shaanxi 710055, China.

ISA transactions
|December 9, 2025
PubMed
概括

本研究引入了多关节操纵器的耐故障控制方案,提高了尽管执行器故障和干扰使用新的预定义时间扩展状态观察器的跟踪精度.

关键词:
扩展状态观察者观察者有故障耐受性的控制器.操纵器操纵器是什么意思预定义的时间控制.规定的性能控制指令滑动模式控制器 滑动模式控制器

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Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
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State Space Representation01:27

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The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
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Open and closed-loop control systems01:17

Open and closed-loop control systems

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State-space representation is a powerful tool for simulating physical systems on digital computers, necessitating the conversion of the transfer function into state-space form. Consider an nth-order linear differential equation with constant coefficients, like those encountered in an RLC circuit. The state variables are selected as the output and its n−1 derivatives. Differentiating these variables and substituting them back into the original equation produces the state equations.
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