| 汤伟,崔泽涛,王博,杨雅斐,王孟效,费旭勇,张诚.高精度稀释水阀的精密定位控制策略研究[J].中国造纸,2026,45(9):152-161 |
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| 高精度稀释水阀的精密定位控制策略研究 |
| Study on Precise Positioning Control Strategy of High-precision Dilution Water Valve |
| 收稿日期：2026-05-07 修订日期：2026-06-10 |
| DOI：10.11980/j.issn.0254-508X.2026.09.018 |
| 关键词: 稀释水阀 步进电机 精密定位 细分控制 S型速度曲线 |
| Key Words:dilution water valve stepper motor precise positioning microstepping control S-curve velocity profile |
| 基金项目: |
| 作者 | 单位 | 邮编 | | 汤伟* | 1陕西科技大学工业自动化研究所,陕西西安,710021 | 710021 | | 崔泽涛* | 1陕西科技大学工业自动化研究所,陕西西安,710021 | 710021 | | 王博 | 1陕西科技大学工业自动化研究所,陕西西安,710021 | 710021 | | 杨雅斐 | 1陕西科技大学工业自动化研究所,陕西西安,710021 | 710021 | | 王孟效 | 2陕西西微测控工程有限 公司,陕西咸阳,712081 | 712081 | | 费旭勇 | 3仙鹤股份有限公司,浙江衢州,324000 | 324000 | | 张诚 | 3仙鹤股份有限公司,浙江衢州,324000 | 324000 |
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| 摘要:本研究提出了一种基于步进电机软硬协同驱动的稀释水阀精密定位控制策略，设计了基于THB6128架构的驱动器128细分控制电路和5段S型速度曲线算法，利用Matlab/Simulink建立机电联合仿真模型，并通过实物平台验证定位性能。结果表明，驱动器128细分下，阀芯理论位移分辨率可达31.25 nm，稀释水阀直线满行程（32 mm）对应0~3 500个阀位单位；与梯形速度曲线算法相比，5段S型速度曲线算法可减小启停冲击。实物平台验证结果表明，典型开度范围（20%~100%）内，5段S型速度曲线算法的最大绝对误差为3.769个阀位单位，满足稀释水阀高分辨率、低冲击的定位需求。 |
| Abstract:This study proposed a precision positioning control strategy for a dilution water valve based on the coordinated hardware-software driving of a stepper motor. A THB6128-based 128-microstepping driver control circuit and a 5-segment S-curve velocity profile algorithm were designed. An electromechanical co-simulation model was established using Matlab/Simulink, and the positioning performance was verified on a physical experimental platform. The results showed that, under 128-microstepping control, the theoretical displacement resolution of the valve spool reached 31.25 nm, and the full linear stroke of the dilution water valve (32 mm) corresponded to 0~3 500 valve-position units. Compared with the trapezoidal velocity profile algorithm, the 5-segment S-curve velocity profile algorithm reduced start-stop impact. The physical-platform validation showed that, within the typical opening range of 20%~100%, the maximum absolute error of the 5-segment S-curve velocity profile algorithm was 3.769 valve-position units， satisfying the high-resolution and low-impact positioning requirements of the dilution water valve. |
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