arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1907.09249eess.SYcs.SY
收藏

精密定位中改进回路成形的复阶控制

Complex order control for improved loop-shaping in precision positioning

Niranjan Saikumar, Duarte Valério, S. Hassan HosseinNia

摘要:

本文提出了一种复杂的顺序滤波器的开发,并随后集成到一个基于PID的控制器设计。非线性滤波器被设计为具有复位元件,以具有与线性(实际上不可实现的)复阶滤波器的频率响应类似的基于描述函数的频率响应。这允许如从环路成形滤波器设计角度所期望的那样具有负增益斜率和对应的正相位斜率的设计。这种方法能够在不损害带宽或稳定性要求的情况下提高精确跟踪。所提出的设计进行了测试,平面精密定位阶段和性能相比,PID和其他国家的最先进的复位控制器,展示这种过滤器的优点。

英文摘要:

This paper presents a complex order filter developed and subsequently integrated into a PID-based controller design. The nonlinear filter is designed with reset elements to have describing function based frequency response similar to that of a linear (practically non-implementable) complex order filter. This allows for a design which has a negative gain slope and a corresponding positive phase slope as desired from a loop-shaping controller-design perspective. This approach enables improvement in precision tracking without compromising the bandwidth or stability requirements. The proposed designs are tested on a planar precision positioning stage and performance compared with PID and other state-of-the-art reset based controllers to showcase the advantages of this filter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑