双倍优化的控制设计,用于第二阶段的结构修剪以及时间延迟系统
Canxian Li1, Hui Zhang1, Qinruo Wang1
1School of Automation, Guangdong University of Technology, Guangzhou 510006, Guangdong, China.
ISA transactions
|November 9, 2023
概括
一个新的控制器,第二阶段加时延迟两倍最佳控制和结构修剪 (SOPTD-TOCCP) 控制器,增强了系统的稳定性和设置点跟踪. 这种方法为复杂的控制挑战提供了一个简单,可靠和多功能解决方案.
科学领域:
- 控制工程 控制工程 控制工程
- 系统动力学系统动力学
背景情况:
- 二阶加时延迟 (SOPTD) 系统由于其固有的动态性而带来了重大控制挑战.
- 有效的控制策略对于在工业过程中实现强大的性能和精确的设定点跟踪至关重要.
研究的目的:
- 提出一种新型控制器,即SOPTD-TOCCP控制器,集成双倍最佳控制 (TOC) 和结构修剪 (CP) 方法.
- 提高SOPTD系统的稳定性和设定点跟踪能力.
- 为工程师提供一种快速而准确的方法来确定最佳时间尺度以改善控制.
主要方法:
- 设计用于SOPTD系统的TOC控制器,使用经典的级联控制器和扩展状态观察器 (ESO).
- 开发一种快速而准确的方法来确定最佳的时间尺度.
- 引入一种新的强大的增强方法和专门用于SOPTD系统的建筑修剪方法.
主要成果:
- 拟议的SOPTD-TOCCP控制器表现出强大的稳定性和出色的设定点跟踪性能.
- 一种新的方法可以快速准确地获取最佳时间尺度,这对于控制性能至关重要.
- 分析揭示了参数灵敏度对SOPTD系统的影响,指导控制器调整.
结论:
- SOPTD-TOCCP控制器是一种简单,可靠和多功能解决方案,用于控制SOPTD系统.
- 与现有方法相比,拟议的方法显著提高了控制性能,特别是稳定性.
- 该研究为工程师提供了有价值的见解和实用工具,用于使用SOPTD系统.
相关概念视频
01:07Time-Domain Interpretation of PD Control
120
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...
120
01:24Time and frequency -Domain Interpretation of Phase-lead Control
88
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...
88
01:26PD Controller: Design
247
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,...
247
01:18Second Order systems II
115
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.
115
01:22Controller Configurations
102
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...
102
01:20Second Order systems I
165
A servo system exemplifies a second-order system, featuring a proportional controller and load elements that ensure the output position aligns with the input position. The relationship between these components is described by a second-order differential equation. Applying the Laplace transform under zero initial conditions yields the transfer function, showing how inputs are converted to outputs in the system.
By reinterpreting the system, one can derive the closed-loop transfer function, which...
By reinterpreting the system, one can derive the closed-loop transfer function, which...
165