歇斯底里观察器增强了用于精密跟踪应用的压电平台的集成终端滑动模式控制
Jie Chen1, Lei Ni2, Xuan Liao1
1Key Laboratory of Testing Technology for Manufacturing Process of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China; Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu 610299, China.
ISA transactions
|June 21, 2025
概括
这项研究引入了一种用于压电定位平台的新控制器,通过解决非线性和歇斯底里的问题来提高精度. 歇斯底里观察器增强集成终端滑动模式控制器 (HO-ITSMC) 实现了有限时间的融合,以实现准确的位移跟踪.
科学领域:
- 机械电子和控制工程 机械电子和控制工程
- 材料科学与工程 材料科学与工程
- 机器人和自动化机器人与自动化
背景情况:
- 断片驱动定位平台对于高精度应用至关重要.
- 这些平台的非线性和歇斯底里降低了性能.
- 需要准确的状态估计和先进的控制来克服这些局限性.
研究的目的:
- 使用不对称的Bouc-Wen模型开发压电平台的动态模型.
- 设计一个超扭转的终端滑动模式观察器用于状态估计.
- 为准确的位移跟踪提出了一种新型的hysteresis观察器增强集成终端滑动模式控制器 (HO-ITSMC).
主要方法:
- 开发一个包含不对称的Buc-Wen歇斯底里模型的动态模型.
- 终端滑动模式观察器的设计,具有超扭曲机制用于状态估计.
- 关于HO-ITSMC战略的建议和理论稳定性分析 (利亚普诺夫定理).
主要成果:
- 无论初始条件如何,HO-ITSMC控制器都证明了有限时间的趋同.
- 广泛的实验验证了拟议的控制方法的有效性.
- 与传统控制器相比,HO-ITSMC实现了卓越的精确跟踪性能.
结论:
- 开发的动态模型和观察器准确地表示和估计了压电平台的状态.
- 在高精度应用中,HO-ITSMC为精确的位移跟踪提供了强大而有效的解决方案.
- 这种先进的控制策略通过减轻非线性和歇斯底里症,显著提高了压力驱动系统的性能.
相关概念视频
01:24PI Controller: Design
479
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
479
01:27Time and frequency -Domain Interpretation of PI Control
202
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...
202
01:26Feedback control systems
416
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...
416
01:07Time-Domain Interpretation of PD Control
178
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...
178
01:19PID Controller
232
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
232
01:17Open and closed-loop control systems
984
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
984