Continuous fractional-order Zero Phase Error Tracking Control.
Continuous fractional-order Zero Phase Error Tracking Control.
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DOI：
10.1016/j.isatra.2018.01.025
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发表时间：
2018-04
期刊：
影响因子：
7.3
通讯作者：
Lu Liu;S. Tian;Dingyu Xue;Tao Zhang;Y. Chen
中科院分区：
文献类型：
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作者：
Lu Liu;S. Tian;Dingyu Xue;Tao Zhang;Y. Chen
提出了一种跟踪期望时变输入信号的连续时间分数阶前馈控制算法。该控制器消除了分数阶闭环系统零点和极点引起的相位偏移，称为分数阶零相位跟踪控制器（FZPETC）。被控系统分为两类，即有和没有不可取消（非最小相位）的零点，站在不稳定区域或稳定边界。每种系统都有针对性的FZPETC设计控制策略。改进的跟踪性能已被成功地评估通过应用所提出的控制器，三种不同的分数阶控制系统。此外，针对系统未来跟踪轨迹信息不确定或采用理想跟踪算法时高频干扰抑制能力不强的情况，提出了一种改进的准理想跟踪算法。仿真比较和半实物热珀耳帖平台验证了所提出的准完美控制算法的实用性。
A continuous time fractional-order feedforward control algorithm for tracking desired time varying input signals is proposed in this paper. The presented controller cancels the phase shift caused by the zeros and poles of controlled closed-loop fractional-order system, so it is called Fractional-Order Zero Phase Tracking Controller (FZPETC). The controlled systems are divided into two categories i.e. with and without non-cancellable (non-minimum-phase) zeros which stand in unstable region or on stability boundary. Each kinds of systems has a targeted FZPETC design control strategy. The improved tracking performance has been evaluated successfully by applying the proposed controller to three different kinds of fractional-order controlled systems. Besides, a modified quasi-perfect tracking scheme is presented for those systems which may not have available future tracking trajectory information or have problem in high frequency disturbance rejection if the perfect tracking algorithm is applied. A simulation comparison and a hardware-in-the-loop thermal peltier platform are shown to validate the practicality of the proposed quasi-perfect control algorithm.