| 基于改进模糊PID的挤出橡胶定量分剪系统研究 |
| Research on Weighing and Shearing System of Extruded Rubber Based on Improved Fuzzy PID |
| 投稿时间：2020-06-18 修订日期：2020-06-18 |
| DOI：10.12136/j.issn.1000-890X.2020.11.0861 |
| 中文关键词: 挤出橡胶 定量分剪 PID控制 模糊算法 动态称量 |
| 英文关键词: extruded rubber shearing system PID control fuzzy algorithm dynamic weighing |
| 基金项目:国家自然科学基金资助项目（51405084） |
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| 中文摘要: |
| 对高精度挤出橡胶定量分剪系统进行研究，设计了基于质量反馈的称量系统及模糊PID控制算法。称量系统设计为上压多辊式结构，称量反馈装置设计为杠杆-带式结构。系统采用模糊PID控制算法，通过质量闭环控制实现了挤出橡胶动态定量分剪的自动化和高精度化。通过对偏差信号调节能力分析，对模糊算法的隶属函数参数进行相应地动态调整，提高了模糊PID控制的机器学习能力，实现了PID控制算法参数的自整定。联机运行试验结果表明，该系统可实现挤出橡胶的高精度定量分剪，具有抗扰动和自适应能力，显著提高了定量分剪效率。 |
| 英文摘要: |
| The high precision weighing and shearing system of extruded rubber was studied，and a weighing system based on weight feedback and a fuzzy PID control algorithm were designed. The weighing system was designed as an upper pressure multi-roller structure. The weighing feedback device was designed as a lever-belt structure. Fuzzy PID control algorithm was adopted in the system to realize the automation and high precision of dynamic weighing and shearing of extruded rubber through weight closed-loop control. Through the analysis of the adjustment ability of the deviation signal，the membership function parameters of the fuzzy algorithm were dynamically adjusted accordingly，which improved the machine learning ability of the fuzzy PID control and realized the self-tuning of the parameters of the PID control algorithm. The online operation experiment results indicated that the system could achieve high precision weighing and shearing of extruded rubber，which had the ability of anti-disturbance and self-adaptation，and significantly improved the weighing and shearing efficiency. |
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