Open loop-closed loop compound control algorithm of proportional solenoid valve

被引：0
作者：
Hao, Yunzhi [1 ]
Xue, Rongsheng [1 ]
Chen, Jian [2 ]
Zhou, Qian [1 ]
机构：
[1] Intelligent Transmission and Control Laboratory, Southwest University
[2] College of Engineering, Southwest University
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2014年 / 45卷 / 02期
关键词：
Compound control; Open loop control; Pressure; Solenoid valve;
D O I：
10.6041/j.issn.1000-1298.2014.02.052
中图分类号：
学科分类号：
摘要：
In order to quickly establish a pressure control algorithm with good performance for proportional solenoid valve, a compound control algorithm with the combination of open loop control and closed loop control was presented. The algorithm improved the control performance by making full use of the valve response characteristics. Control algorithm design process and control models were established. Unlike the conventional control methods which took the error as the only input, the input of compound control algorithm consisted of both the goal value and the error value. Valve respond characteristics were tested. The open loop control table was established based on the steady-state characteristics of the valve and the saturation in steady-state was eliminated by the open loop control table. The closed loop control value and delay effect compensate value were calculated according to the transient characteristics and the closed loop controller was used to revise the model error and improve the dynamic response. Experiment results showed that the performance of compound control algorithm was accurate, fast response and robust.
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页码：314 / 319
页数：5
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