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相关概念视频

Feedback control systems01:26

Feedback control systems

Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
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...
Linear Approximation in Time Domain01:21

Linear Approximation in Time Domain

Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length, the...
Second Order systems II01:18

Second Order systems II

In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
If  ζ...
Controller Configurations01:22

Controller Configurations

Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller aligns...
PD Controller: Design01:26

PD Controller: Design

In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

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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相关实验视频

Updated: Jul 6, 2026

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
09:01

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques

Published on: April 4, 2017

一种用于非线性冲动随机系统的可变收率的滑动模式控制方法.

Penghe He, Huasheng Zhang, Shun-Feng Su

    IEEE transactions on cybernetics
    |March 27, 2025
    PubMed
    概括
    此摘要是机器生成的。

    这项研究引入了非线性冲动静态系统 (NISS) 的新型滑动模式控制器,使得可调节的收率和有效的抑制成为可能. 该方法可确保NISS具有可变的收率的有限时间稳定性.

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    相关实验视频

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    Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
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    Published on: October 28, 2022

    科学领域:

    • 控制系统工程 控制系统工程
    • 非线性动力学是一种非线性动力学.
    • 模糊逻辑系统 模糊逻辑系统

    背景情况:

    • 对于非线性冲动随机系统 (NISS) 的现有控制方法通常存在固定的收率,这限制了它们的适应性.
    • 在NISS中,可变收率稳定性的问题需要先进的控制策略来满足各种应用需求.
    • 是这些系统中常见的问题,需要有效的抑制才能实现可靠的性能.

    研究的目的:

    • 开发一种新的方法来设计NISS的滑动模式表面.
    • 构建一类新的滑动模式控制器,能够实现可变收率稳定性.
    • 调查拟议的控制器的动抑制能力,并分析西格功能的影响.

    主要方法:

    • 一种滑动模式表面设计方法,结合了间隔稳定性和TS模糊技术.
    • 使用设计的表面和sigmoid功能的滑动模式控制器的构建.
    • 导出足够的条件来实现有限时间的趋同和可变的趋同率稳定性.

    主要成果:

    • 拟议的控制器实现了系统收率的智能调整,克服了固定率的局限性.
    • 通过分析不同sigmoid功能的影响,证明了有效的抑制.
    • 建立了足够的条件,以保证有限时间状态转移到滑动表面和可变收率稳定性.

    结论:

    • 新的滑动模式控制策略有效地解决了NISS的可变收率稳定性问题.
    • 拟议的控制器提供可调整的收率和强大的动抑制,通过球束系统上的模拟验证.
    • 这种方法提供了一个灵活而强大的工具来控制复杂的非线性冲动随机系统.