对多个自主水下车辆的反干扰形成封闭控制,具有不均的时间变化的通信延迟
Yunfei Cui1, Jian Xu2, Liangang Yin2
1College of Mathematics and Statistics, Hainan Normal University, Haikou, 571158, China.
ISA transactions
|October 10, 2025
概括
本研究引入了多个自主水下车辆系统 (MAUVS) 的新控制策略,以实现形成封闭控制 (FCC),尽管通信延迟和干扰. 该方法提高了系统的稳定性,并确保了稳定的形成跟踪.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制系统工程 控制系统工程
- 海洋工程 海洋工程
背景情况:
- 多个自主水下车辆系统 (MAUVS) 在形成封闭控制 (FCC) 中面临挑战.
- 不统一的时间变化的通信延迟 (NTCD) 和外部干扰会降低系统性能.
- 现有的控制策略往往缺乏对复合干扰的强度.
研究的目的:
- 在MAUVS中为FCC提出一种新的分布式控制策略.
- 增强对NTCD和外部干扰的抗干扰能力.
- 为了确保在复杂的条件下稳固的形成跟踪和制.
主要方法:
- 设计一个集成扩展状态观察器 (ESO) 和跟踪区分器 (TD) 的分布式控制框架.
- 实时估计和补偿使用ESO的总干扰.
- 应用Lyapunov-Krasovskii功能分析和线性矩阵不等式 (LMI) 方法.
- 使用TD来防止虚拟控制器中的差异性爆炸.
主要成果:
- 在同时NTCD和复合干扰下实现了MAUVS的FCC.
- 通过ESO和TD集成,证明了系统稳定性的提高.
- 导出了足够的条件,确保形成跟踪和封闭错误的统一的最终边界性.
- 通过数值模拟验证了拟议的控制策略.
结论:
- 拟议的控制策略有效地解决了FCC在MAUVS与NTCD和干扰方面的挑战.
- 集成ESO和TD显著提高了系统的稳定性和防干扰能力.
- 理论结果得到了验证,证实了该方法对现实世界的应用的可行性和有效性.
相关概念视频
Uniform Depth Channel Flow: Problem Solving
429
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
429
Uniform Depth Channel Flow
527
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
527
Buoyancy and Stability for Submerged and Floating Bodies
2.5K
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
2.5K
Distributed Loads: Problem Solving
1.1K
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
1.1K
Linear time-invariant Systems
870
A system is linear if it displays the characteristics of homogeneity and additivity, together termed the superposition property. This principle is fundamental in all linear systems. Linear time-invariant (LTI) systems include systems with linear elements and constant parameters.
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
870
Rapidly Varying Flow
446
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
446


