基于傅立叶变换的频域调节器在往复运动中的运用  

Application of Frequency-domain Regulator Based on Fourier Transfer in Reciprocating Motion

作　　者：宋宝[1] 唐小琦[2] 蔡李隆[1] 

机构地区：[1]香港科技大学机械工程系 [2]华中科技大学机械学院,湖北武汉430074

出　　处：《制造技术与机床》2008年第9期58-61,共4页Manufacturing Technology & Machine Tool

摘　　要：基于系统频率响应特性,在分析往复运动具有周期性特点的基础上,设计了一种新型的基于傅立叶变换的频域调节器,将此作为系统调节器的前馈环节。频域调节器通过调节选定的频域信号的幅值和相角,来调整系统调节器的输出,从而减少系统误差,改善系统控制性能。并通过实验验证了所提出的基于傅立叶变换的频域调节器的有效性。In this paper, based on the analysis of system＇ s frequency response and the signal＇ s periodic character- istics of reciprocating motion, a novel frequency - domain regulator based on Fourier transfer is designed as the forward part of system controller. By regulating the amplitude and phase angle of one frequency signal in the selected field of frequency domain, the regulator＇s output is controlled to reduce the system error and improve the system performance. At last, the experiments have proved the effectiveness of the approach.

关 键 词：频域响应 傅立叶变换 往复运动 位置调节器 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TP274.5[自动化与计算机技术—计算机科学与技术]