在动态量子化下非线性网络系统的适应性定时事件触发控制.
IEEE transactions on cybernetics
|March 27, 2025
概括
本研究介绍了使用规定的时间 (PT) 框架对不确定非线性系统的适应性事件触发和量子化控制. 这种新的方法提高了数据的效率,并确保了系统的稳定性,而不会出现Zeno现象.
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.
- 适应性控制理论 适应性控制理论
背景情况:
- 网络控制系统面临着数据传输效率和不确定性下的稳定性方面的挑战.
- 现有的控制方法可能具有很高的计算负载,并且对系统参数敏感.
研究的目的:
- 为不确定的非线性系统开发适应性事件触发和量子化控制框架.
- 提高网络控制系统中的数据传输效率.
- 为了确保全球规定的时间 (PT) 稳定性,而没有Zeno现象.
主要方法:
- 引入了一个动态事件触发机制和一个动态事件驱动的定量仪.
- 在不假定输入到状态稳定性 (ISS) 的情况下开发离散控制框架.
- 基于自适应参数估计的PT事件触发自适应控制器和PT采样/量子化自适应控制器的建议.
主要成果:
- 一个新的"一步控制器"设计可以减少计算负载,而不是倒退的方法.
- 非线性系统的全球PT稳定性得到了保证.
- 在事件触发的采样过程中避免了Zeno现象.
结论:
- 拟议的自适应事件触发和定量化控制方法对于不确定非线性系统是有效的.
- 这种方法提高了数据传输效率,并确保了系统的稳定性.
- 通过数值和操纵系统的验证证实了该方法的实用性.
相关概念视频
Classification of Systems-II
Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
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 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...
State Space Representation
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.
Consider an RLC circuit, a...
Consider an RLC circuit, a...
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...
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...
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...
Consider the example of control of motor torque. Initially, a positive...
Time and frequency -Domain Interpretation of Phase-lead Control
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...


