CLC number:
On-line Access: 2022-08-22
Received: 2022-01-22
Revision Accepted: 2022-04-14
Crosschecked: 2022-08-30
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Citations: Bibtex RefMan EndNote GB/T7714
He LIU, Bin ZHAO, Bo WANG, Long QUAN, Yun-xiao HAO, Yun-wei LI. Flow control characteristics of the digital and mechanical redundancy control electric modulation valve[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2100526 @article{title="Flow control characteristics of the digital and mechanical redundancy control electric modulation valve", %0 Journal Article TY - JOUR
数字机械冗余控制电调制阀的流量控制特性机构:1太原理工大学,新型传感器与智能控制教育部重点实验室,中国太原,030024;2阿尔伯塔大学,电气与计算机工程系,加拿大埃德蒙顿,ABT6G1H9 目的:电调制阀可根据连续变化的输入电信号提供成比例输出的阀芯位移、流量或压力,是电液比例控制技术的核心元件。本文旨在消除压差变化对阀输出流量的影响,实现对电调制阀流量的高精度控制和安全冗余控制。 创新点:1.提出了一种数字机械冗余控制电调制阀输出流量的方法,实现了对流量的高精度控制和安全冗余控制。2.建立了联合仿真模型和试验测试平台,并通过仿真和试验证明了创新方案的可行性,且系统动静态特性良好。 方法:1.通过理论推导和数学模型分析,得到压差变化时阀芯位移和输出流量的关系。2.在仿真软件中建立电调制阀的机电液联合仿真模型,并进行联合仿真研究,验证所提方案的可行性。3.建立电调制阀试验测试平台进行试验测试,验证所提方案的正确性和可行性。 结论:1.数字补偿流量方案可以在压差变化时保持通过阀的流量恒定,流量控制精度高;根据不同的流量要求,可在控制器中设置参数,灵活调整设定压差。2.数字补偿流量方案可以在机械压力补偿阀的作用下控制流量,达到冗余控制的目的,提高系统的安全性。 关键词组: Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article
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