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首页> 外文期刊>International Journal of Machine Tools & Manufacture: Design, research and application >Application of active disturbance rejection control to variable spindle speed noncircular turning process
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Application of active disturbance rejection control to variable spindle speed noncircular turning process

机译：主动抗扰控制在变速主轴非圆车削过程中的应用

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摘要

In application of variable spindle speed machining to noncircular turning process, the tracking control of the fast tool servo yields a periodic sampling rate in the real-time domain. However, in the view of the angle domain, the sampling rate is constant Moreover, the reference acceleration signal is easily available. This implies that it is advantageous to design the control system from the angle domain perspective, but the plant for a linear time-invariant system will become a periodically time-varying system. In this paper, the active disturbance rejection control strategy is applied to actively estimate the time-varying dynamics and other disturbances and compensate for them in the control law. The acceleration feed-forward strategy is employed to achieve better tracking performance. The stability analysis based on the lifting technique is proposed. Experimental machining results demonstrate the tracking performance of the proposed design, as well as the ability to increase machining stability using variable spindle speed machining.
机译：在将变转速加工应用于非圆车削加工中时，快速工具伺服的跟踪控制在实时域中产生周期性的采样率。然而，从角度域的角度来看，采样率是恒定的。此外，参考加速度信号是容易获得的。这意味着从角度域的角度设​​计控制系统是有利的，但是用于线性时不变系统的设备将成为周期性的时变系统。本文采用主动干扰抑制控制策略来主动估计时变动力学和其他干扰，并在控制律中对其进行补偿。加速前馈策略用于实现更好的跟踪性能。提出了基于提升技术的稳定性分析。实验加工结果证明了所提出设计的跟踪性能，以及使用可变主轴速度加工提高加工稳定性的能力。

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