摘要
测量管振动的稳定性、可靠性是科氏质量流量计实现精确计量的基础。针对科氏质量流量计振动幅值控制问题,设计了一种仿人智能控制方法,将科氏质量流量计测量管振动分为起振稳幅和干扰抑制两个阶段,根据幅值偏差及偏差变化率分别划分出5种和3种不同的特征状态,构建特征状态集;对于不同的特征状态,分别设计相应控制模态,构建控制模态集,同时设计启发式搜索和直觉推理规则集。控制过程中,先根据偏差及偏差变化率辨识出当前振动状态,依据推理规则集选择相应的控制模态进行振动控制。实验结果表明,所提方法可以实现科氏质量流量计快速起振,且振幅稳定,验证了方法优越性和工程实用性。
The stability and reliability of the measurement tube vibration is the basis for Coriolis mass flowmeter to achieve accurate measurement. Aiming at the vibration amplitude control issue of Coriolis mass flowmeter, a human-simulated intelligent control method is designed. The vibration of Coriolis mass flowmeter measurement tube is divided into two stages of vibration-start amplitude stabilization and interference suppression;according to the amplitude deviation and deviation rate, five and three different characteristic states are decided, and the characteristic state sets are constructed. The corresponding control modes are designed for different characteristic states respectively, and the control mode sets are constructed, and the heuristic search and intuitive inference rule sets are designed. In the control process, the current vibration state is identified according to the deviation and deviation rate, and corresponding control mode is selected according to the inference rule set to conduct the vibration control. The experiment results show that the proposed method can achieve fast oscillation starting and stable amplitude of the Coriolis mass flowmeter, which verifies the superiority and engineering practicability of the proposed method.
作者
杨辉跃
涂亚庆
毛育文
Yang Huiyue;Tu Yaqing;Mao Yuwen(Army Logistics University of PLA, Chongqing 401311, China)
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2019年第5期118-123,共6页
Chinese Journal of Scientific Instrument
基金
国家重点研发计划重点专项(2018YFB2003900)
国家自然科学基金(61871402,61501491)
重庆市基础与前沿研究计划(cstc2015jcyjA00029,cstc2019jcyj-msxm1439)项目资助
关键词
科氏质量流量计
智能控制
仿人智能控制
Coriolis mass flowmeter (CMF)
intelligent control
human-simulated intelligent control
