多变量代学习控制设计用于灵活料驱动器的精密控制
Yulin Wang1,2, Tesheng Hsiao1
1Institute of Electrical and Control Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
本研究介绍了CNC机床的多变量代学习控制 (MILC). 该方法通过使用电机和表反来提高动态定位准确性,提高灵活料驱动系统的精度.
科学领域:
- 机械工程 机械工程
- 控制系统工程 控制系统工程
背景情况:
- 现代加工需要更高的速度和精度,推动了对数控机床中先进控制系统的需求.
- 传统的CNC控制器使用电机侧旋转编码器进行位置反,以确保稳定性并防止元件损坏,但局限性仍然存在.
- 诸如误差,振动和热变形等因素会影响灵活料驱动系统的定位准确性.
研究的目的:
- 为灵活的数控料驱动系统开发和验证一种新的多变量代学习控制 (MILC) 方法.
- 通过整合来自电机和桌面两侧的反来提高动态定位的准确性.
- 为了减轻控制冲突,减少灵活结构中的跟踪错误.
主要方法:
- 实施一个多变量代学习控制 (MILC) 策略.
- 利用来自电机和桌面两侧的错误数据来提高精度.
- 通过标准优化将补偿命令注入参考轨迹和控制命令.
- 在工业双轴数控机床上进行实验验证.
主要成果:
- MILC方法有效地提高了灵活料驱动系统的动态定位精度.
- 整合双侧反 (电机和桌面) 导致更高的精度.
- 反控制 (FBC) 和传统的代学习控制 (ILC) 之间的冲突得到了缓解.
- 在桌面侧实现了显著较小的跟踪错误.
结论:
- 拟议的MILC方法为提高CNC机床精度提供了强大的解决方案.
- 这种方法显示了在高速,高精度加工中推进控制策略的巨大潜力.
- 实验验证证证实了MILC在工业应用中的有效性.
相关概念视频
01:17Open and closed-loop control systems
714
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...
714
01:26Feedback 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
01:22Controller Configurations
94
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...
94
01:10Control Systems
1.1K
Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
At the heart...
1.1K
01:24PI Controller: Design
243
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...
243
01:19PID Controller
115
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...
115