智能电气阀门系统控制优化方法研究

摘要

In view of the current confirm fuzziness exists,valve positioner control signal control overshoot problem,a PID control method based on fusion to blur is put forward.The comprehensive analysis of the intelligent electric valve positioner based on control theory,a clear system of the membership of different elements of fuzzy control variables,using the method of center of gravity to blur,obtain the PID parameters can be revised.The error and error volatility as the input of algorithms,through to the fuzzy PID parameters to control the system data in time,and then realize the accurate control of the valve position,the experimental results shows that the method improves the control precision of electric valve positioner,has strong stability.%针对当前阀门定位器控制信号存在确认模糊性,造成控制超调问题,提出了一种基于融合去模糊化的PID控制方法.在综合分析智能电气阀门定位器的控制原理基础上,明确系统中不同变量元素对模糊控制变量的隶属度；利用重心法去模糊化,获得PID参数的修正值；将误差以及误差波动率当成算法的输入,通过去模糊规范PID参数对系统数据进行及时控制,进而实现对阀门位置的准确控制.实验结果说明提高了电气阀门定位器的控制精度,具有较强的稳定性.