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Detection and Reduction of Middle-Frequency Resonance for Industrial Servo with Self-Tuning Lowpass Filter

机译：带自整定低通滤波器的工业伺服中频谐振检测与降低

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摘要

A novel method for middle frequency resonance detection and reduction is proposed for speed control in industrial servo systems. Defects of traditional resonance reduction method based on adaptive notch filter in middle frequency range are analyzed. And the main reason is summarized as the difference between the resonance frequency and the oscillation frequency. A self-tuning low-pass filter is introduced in the speed feedback path, whose corner frequency is determined by FFT results and several self-tuning rules. With the proposed method the effective range of the adaptive filter is extended across the middle frequency range. Simulation and Experiment results show that the frequency detection is accurate and resonances during the speed steady states and dynamics are successfully reduced.
机译：提出了一种中频共振检测和降低的新方法，用于工业伺服系统的速度控制。分析了基于自适应陷波滤波器的传统共振抑制方法在中频范围内的缺陷。并且将主要原因归纳为谐振频率和振荡频率之间的差异。在速度反馈路径中引入了一个自调整低通滤波器，其转折频率由FFT结果和一些自调整规则确定。利用所提出的方法，自适应滤波器的有效范围扩展到整个中频范围。仿真和实验结果表明，频率检测是准确的，并且成功地减小了速度稳态和动态过程中的共振。

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  • 来源
    《Journal of control science and engineering》 |2012年第2期|478907.1-478907.12|共12页
  • 作者

    Wen-Yu Wang; An-Wen Shen;

  • 作者单位

    Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China;

    Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China;

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