Piezoelectric type nozzle flapper valve and its control method

ZHOU Miao-lei; YANG Zhi-gang; TIAN Yan-tao; CHENG Guang-ming; GAO Wei

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Piezoelectric type nozzle flapper valve and its control method

更新时间：2020-08-12

- Piezoelectric type nozzle flapper valve and its control method
- Optics and Precision Engineering Vol. 15, Issue 3, Pages: 372-377(2007)
- 作者机构：
  
  1. 吉林大学通信工程学院,吉林长春,中国,130012
  2. 吉林大学机械科学与工程学院,吉林长春,130025
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN384;TP273
- Received：22 July 2006，
  
  Revised：18 December 2006，
  
  Published Online：30 June 2007，
  
  Published：30 June 2007
- 稿件说明：
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ZHOU Miao-lei, YANG Zhi-gang, TIAN Yan-tao, et al. Piezoelectric type nozzle flapper valve and its control method[J]. Optics and precision engineering, 2007, 15(3): 372-377.
DOI：

ZHOU Miao-lei, YANG Zhi-gang, TIAN Yan-tao, et al. Piezoelectric type nozzle flapper valve and its control method[J]. Optics and precision engineering, 2007, 15(3): 372-377. DOI：

摘要

提出了一种新型压电晶片型喷嘴挡板式电液伺服阀

并对其控制方法进行了研究。采用成本较低的双压电晶片弯曲元件设计了双喷嘴挡板放大器

用其取代原有传统的力矩马达作为双喷嘴电液伺服阀的前置级驱动器。介绍了新型压电晶片型喷嘴挡板式电液伺服阀的工作原理。最后

针对压电元件存在的迟滞、蠕变非线性及系统中存在的时变性因素等问题

采用了具有自学习、自适应和自组织能力的单神经元自适应PSD智能控制算法对系统进行控制。实验结果表明

采用PID控制算法时系统阶跃响应的超调量和稳态时间分别为27.9%和0.13 s

而采用提出的控制算法时系统阶跃响应的超调量和稳态时间只有2.4%和0.07 s

验证了该方法的有效性。新型压电晶片型喷嘴挡板式电液伺服阀结构简单、成本低、精度高

可以满足精密控制系统的要求。

Abstract

A novel piezoelectric type nozzle flapper hydroelectric servo valve was developed and its control method was researched. A double nozzle baffle amplifier was designed as the prestage actuator of the double nozzle flapper hydroelectric servo valve by the low cost bimorph bend component

then the principle of the novel piezoelectric type nozzle flapper hydroelectric servo valve was introduced. Finally

for the hysteresis and creep nonlinearities of the piezoelectric component and time variation factors of the system

a single nerve-cell adaptive PSD intelligent control method was presented. Experimental results show that the overshoot and the setting time of the step respond under the PID control method is 7.9% and 0.13 s

respectively

but the overshoot and the setting time of the step respond under the proposed control method is 2.4% and 0.07 s. It is proved that the proposed control method is validaty. Experimental results also indicate that the novel piezoelectric type nozzle flapper hydroelectric servo valve has advantages in simple structure

low cost and high precision

it can meet the need of high precise control system in the recent period.

关键词

Keywords

references

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