一种新的性能合成方法,用于未知不匹配的干扰,具有有限频率规格
Gao Huang1, Jixuan Li2, Pan Yu3
1School of Information Science and Technology, Beijing University of Technology, Beijing 100124, China; Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing Institute of Technology, Beijing 100081, China.
ISA transactions
|May 28, 2025
概括
这项研究引入了一种用于系统中干扰-拒绝控制的新方法,即使在未知干扰的情况下,也提高了性能. 这种方法可以提高控制系统的稳定性,而无需对干扰特征做出预先假设.
科学领域:
- 控制系统工程 控制系统工程
- 强大的控制理论.
- 系统识别系统识别系统
背景情况:
- 相当输入干扰 (EID) 控制系统通常假定已知的干扰特征.
- 现有的方法可能需要先前了解干扰或缺乏保证的性能.
- 在单输入,单输出 (SISO) 和多输入,多输出 (MIMO) 系统中实现强大的干扰排斥仍然是一个挑战.
研究的目的:
- 开发一种新的合成方法,用于基于EID的控制系统中的干扰-排斥性能.
- 为了保证规定的有限频率性能,无论未知或不匹配的干扰.
- 消除对控制输入通道上存在EID的先前假设.
主要方法:
- 通过将Luenberger观察者视为理想动态来引入辅助指标 (中间变量).
- 对SISO和MIMO系统使用换算条件的干扰-拒绝控制机制的分析.
- 开发一个实际的交换条件和一个以性能为导向的设计算法.
主要成果:
- 交换性条件对于 SISO 系统来说是固有的满足.
- 为了应对MIMO系统的挑战,开发了一种实际的交换条件.
- 拟议的算法确保了有限频率和整个频率的干扰-排斥性能要求.
结论:
- 这种新的合成方法为基于EID的控制系统提供了强大的干扰排斥.
- 开发的方法保证了在没有先前干扰知识的情况下的性能.
- 案例研究证明了该方法在车辆悬架和MIMO系统中的优越性.
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