一个基于斯图尔特平台的2-DOF无拖动控制地面模拟系统
Jueqi Lin1, Junxiang Lian1, Guoying Zhao1
1School of Physics and Astronomy, Sun Yat-sen University (Zhuhai Campus), Zhuhai, 519082, China.
ISA transactions
|January 16, 2024
概括
这项研究引入了一种新的地面模拟,用于无拖动控制,这对于太空引力波任务至关重要. 开发的H-infinity控制器实现了高精度,验证了它对超稳定的太空实验的有效性.
科学领域:
- 太空物理空间物理学
- 天体物理学 天体物理学
- 控制系统工程 控制系统工程
背景情况:
- 基于太空的引力波任务需要在遥远的测试质量之间进行皮科米级的精确位移测量.
- 无拖动控制对于维持这些任务所需的超静态和超稳定的实验平台至关重要.
研究的目的:
- 通过使用斯图尔特平台,提出和验证一项创新的地面模拟方案,以实现无拖动控制原则.
- 为太空应用设计和测试一款强大的无拖动控制器.
主要方法:
- 斯图尔特平台的动力学和动态建模.
- 一个无拖动地面模拟实验装置的设计和建造.
- 使用H-无限循环成型算法开发一个两度自由度 (2-DOF) 无拖动控制器.
- 采用快速控制原型技术的半物理模拟实验.
主要成果:
- 在模拟中,H-infinity控制器在PID控制器上表现出优越的性能.
- 实验结果证实了无拖动控制算法的有效性,达到硬件的极限精度.
结论:
- 提出的基于斯图尔特平台的地面模拟方案是有效的无拖动控制.
- 开发的H-infinity控制器成功地满足了基于太空的引力波探测任务的严格要求.
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