对于具有间歇性采样位置通信的分数顺序网络系统的封闭控制
Yanyan Ye1, Hongzhe Chen1, Jie Tao1
1Guangdong Provincial Key Laboratory of Intelligent Decision and Cooperative Control, and Guangdong-Hong Kong Joint Laboratory for Intelligent Decision and Cooperative Control, School of Automation, Guangdong University of Technology, Guangzhou 510006, China.
概括
本研究介绍了小数序网络系统的新型间歇通信协议,以实现封闭控制. 结果表明,延迟和过去的样本通信对于保证这些协议下的控制至关重要.
科学领域:
- 控制系统工程 控制系统工程
- 网络系统分析 网络系统分析
- 分数计算的应用 分数计算的应用
背景情况:
- 分数顺序系统在控制设计中存在独特的挑战,因为它们的复杂动态.
- 网络系统需要有效的沟通策略来维持控制目标.
- 间歇性通信协议对于减少分布式系统中的通信负载至关重要.
研究的目的:
- 为分数顺序网络系统开发和分析新型间歇采样位置通信协议.
- 建立必要和充分的条件来实现封闭控制.
- 调查通信参数和系统延迟对控制性能的影响.
主要方法:
- 设计了两种新的间歇性采样位置通信协议.
- 基于系统顺序,采样和通讯宽度来推导封闭控制的理论条件.
- 对通信延迟对控制保证的影响分析.
- 通过数值模拟进行验证.
主要成果:
- 拟议的协议使控制器只能在特定的通信间隔内运行.
- 根据不同的顺序,采样期,通讯宽度,合强度和网络结构,得出了对封闭控制的必要和充分条件.
- 该研究强调了通信延迟和过去的样本位置通信在确保封闭控制中的关键作用.
- 根据拟议的协议,在没有延迟或过去的样本通信的情况下,发现封闭控制是无法实现的.
结论:
- 开发的间歇通信协议对于在分数顺序的网络系统中实现封闭控制是有效的.
- 通信延迟和过去采样信息的使用对于在这些协议下成功进行封闭控制是不可或缺的.
- 这些发现为设计网络分数顺序系统的强大高效控制策略提供了宝贵的见解.
相关概念视频
Sampling Continuous Time Signal
227
In signal processing, a continuous-time signal can be sampled using an impulse-train sampling technique, followed by the zero-order hold method. Impulse-train sampling involves the use of a periodic impulse train, which consists of a series of delta functions spaced at regular intervals determined by the sampling period. When a continuous-time signal is multiplied by this impulse train, it generates impulses with amplitudes corresponding to the signal's values at the sampling points.
In the...
In the...
227
Feedback control systems
304
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...
304
BIBO stability of continuous and discrete -time systems
384
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
384
Classification of Systems-II
140
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,
140
State Space Representation
203
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...
203
Time and frequency -Domain Interpretation of PI Control
117
Proportional-Integral (PI) controllers are essential in many control systems to improve stability and performance. They are commonly used in everyday devices like thermostats to enhance system damping and reduce steady-state error. When the zero in the controller's transfer function is optimally placed, the system benefits significantly in terms of stability and accuracy.
Acting as a low-pass filter, the PI controller slows the system's response and extends settling times. This requires...
Acting as a low-pass filter, the PI controller slows the system's response and extends settling times. This requires...
117


