使用比例閥與伺服閥在液壓伺服定位控制上之比較

Comparison of Using Proportional and Servo Valves on Position Control in a Hydraulic Servo System

許政行(Cheng-Hsing Hsu) ； 賴玲瑩(Lin-Ying Lai) ； 葉國安(Kuo-Ann Ye)

《中國航空太空學會學刊》 28卷4期 (1996/12) Pp. 359-366

https://doi.org/10.6124/TAASRC.199612_28(4).10

摘要

本文探討以比例閥及伺服閥進行液壓位置定點(set-point)控制時，液壓缸在具固定負載情況下之定位控制比較。實驗結果顯示，在本實驗操作條件下，使用PID控制時，伺服閥對不同位置之定位控制其通用性，而比例閥則不具通用性；但比例閥之時間響應較快，而在控制精度方面兩者接近。若改用模糊控制器時，在不同位置亦能定位良好，且比例閥亦具有較快之時間響應曲線。因此具類似操作條件之液壓位置伺服系統應可採用比例閥取代伺服閥，在工業應用方面具經濟效益。

關鍵字

液壓位置定點控制 ； 模糊控制 ； PID控制

並列摘要

This study presents the comparison of using a proportional valve and a servo valve on the position set-point control in a hydraulic servo system with a constant loading. Results of the PID control show that the servo valve can be generalized for the set-point control at different positions. The Proportional valve can not be generalized for the set-point control at different positions but its response is faster than that of the servo valve with designed fuzzy algorithms control. Moreover, the fuzzy controllers work as well under 20 kgw loading condition. Thus, considering both the economic effect and the acceptable response performance, the present study suggests that proportional valve can be considered to replace the servo valve on the industrial application.

並列關鍵字

Hydraulic position set-point control ； Fuzzy control ； PID control