High-precision and high-speed flow rate control with nonlinear disturbance compensation using valve body position feedback

IF 3.1 3区计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS

Mechatronics Pub Date : 2025-04-26 DOI:10.1016/j.mechatronics.2025.103317

Koki Hattori, Wataru Ohnishi, Takafumi Koseki

引用次数: 0

Abstract

Pneumatic valves play a crucial role in controlling flow rates across various industrial applications. This study aims to achieve faster and more precise gas flow rate control to improve throughput and product quality. However, inherent nonlinearities such as solenoid hysteresis and compressible fluid dynamics degrade the control performance of pneumatic valves. To address these challenges, this study proposes a mass flow rate control system incorporating an inner feedback loop for valve body position control to compensate for nonlinear disturbances. Furthermore, a data-driven feedforward control approach based on iterative learning control (ILC) is implemented to mitigate repetitive disturbances and enhance flow rate response speed. Experimental validation demonstrates that the inner feedback loop effectively reduces steady-state error, while the proposed feedforward control achieves a 9 ms settling time, 98% faster than conventional industrial control using the same hardware.

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采用阀体位置反馈非线性扰动补偿的高精度高速流量控制

气动阀在控制各种工业应用的流量方面起着至关重要的作用。本研究旨在实现更快、更精确的气体流量控制，以提高产量和产品质量。然而，电磁阀固有的非线性特性，如电磁滞回和可压缩流体动力学，降低了气动阀的控制性能。为了解决这些挑战，本研究提出了一种质量流量控制系统，该系统包含一个内部反馈回路，用于阀体位置控制，以补偿非线性干扰。在此基础上，提出了一种基于迭代学习控制（ILC）的数据驱动前馈控制方法，以减轻重复干扰，提高流量响应速度。实验验证表明，内反馈回路有效地降低了稳态误差，而所提出的前馈控制的稳定时间为9 ms，比使用相同硬件的传统工业控制快98%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mechatronics 工程技术-工程：电子与电气

CiteScore

5.90

自引率

9.10%

发文量

审稿时长

109 days

期刊介绍： Mechatronics is the synergistic combination of precision mechanical engineering, electronic control and systems thinking in the design of products and manufacturing processes. It relates to the design of systems, devices and products aimed at achieving an optimal balance between basic mechanical structure and its overall control. The purpose of this journal is to provide rapid publication of topical papers featuring practical developments in mechatronics. It will cover a wide range of application areas including consumer product design, instrumentation, manufacturing methods, computer integration and process and device control, and will attract a readership from across the industrial and academic research spectrum. Particular importance will be attached to aspects of innovation in mechatronics design philosophy which illustrate the benefits obtainable by an a priori integration of functionality with embedded microprocessor control. A major item will be the design of machines, devices and systems possessing a degree of computer based intelligence. The journal seeks to publish research progress in this field with an emphasis on the applied rather than the theoretical. It will also serve the dual role of bringing greater recognition to this important area of engineering.