使用虚拟时钟方法的离散时间交换系统的数据驱动控制器设计
Yapeng Li1, Tao Wang1, Weiming Xiang2
1School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China.
ISA transactions
|February 8, 2025
概括
这项研究引入了一个新的数据驱动控制器,用于离散时间切换系统,减少保守主义. 这种新方法显示了H-infinity性能优于传统控制器,特别是在噪音方面.
科学领域:
- 控制系统工程 控制系统工程
- 系统理论系统理论
- 数据驱动的控制控制数据驱动的控制
背景情况:
- 离散时间切换系统在现代控制应用中至关重要.
- 现有的控制器设计方法往往表现为保守或适用性有限.
- 解决噪声和状态可测性对于强大的控制至关重要.
研究的目的:
- 为离散时间交换系统开发一种新的,不那么保守的数据驱动控制器设计.
- 在各种噪音和状态可测条件下调查拟议方法的性能.
- 提供灵活的方法,平衡保守主义和适用性.
主要方法:
- 在控制器设计中利用升降和虚拟时钟技术.
- 分析无噪声 (可测量和不可测量状态) 和噪声场景.
- 探索控制器保守主义和实际应用之间的权衡.
主要成果:
- 在特定条件下的无噪声场景中,拟议的方法是非保守的.
- 与传统增益控制器相比,使用这种方法设计的控制器在杂的环境中显示出明显改善的H-infinity性能.
- 数字和实践示例验证了所介绍的方法的有效性.
结论:
- 这种新的数据驱动方法为离散时间切换系统提供了不那么保守,更有效的控制器设计.
- 该方法提供了增强的稳定性和性能,特别是在存在噪音的情况下.
- 该研究通过全面的模拟和实践示例验证了该方法.
相关概念视频
Time and frequency -Domain Interpretation of Phase-lead Control
75
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...
75
PD Controller: Design
171
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,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
171
Time-Domain Interpretation of PD Control
79
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...
79
Classification of Systems-II
133
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,
133
Phase-lead and Phase-lag Controllers
152
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
152
Controller Configurations
83
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...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
83


