自动平衡式数字显示仪表的建模与仿真  

Modeling & Simulating of the Electronic Autobalance Display Instrument

作　　者：刘红丽[1] 李昌禧[1] 

机构地区：[1]华中科技大学控制科学与工程系,湖北武汉430074

出　　处：《仪表技术与传感器》2004年第7期13-14,共2页Instrument Technique and Sensor

摘　　要：在阐述自动平衡式数字显示仪表工作原理的基础上,详细分析了显示仪表各部分结构参数对系统动态性能的影响,并建立了该系统的数学模型。根据系统动态性能指标的要求,利用软件设计了3种不同的控制器,并利用MAT LAB语言对该数学模型进行了仿真,最后分析了3种不同控制规律下的系统模型的仿真结果。仿真结果表明:引入速度反馈(PD控制器)的自动平衡式数字显示仪表具有超调量小、调节时间短、软件实现简单等优点,能满足实际应用对自动平衡式数字显示仪表的动态性能要求。Based on the introduction of the operating principle,analysed the influence of the every part of the electronic autobalance digital display instrument on the dynamical performance of system,and built up the system mathematical model.According to the desire of the dynamical performance index of the system,three controllers were designed in software.Then the mathematical model built up was simulated with MATLAB language,and the simulation results were researched at last.The simulation results are shown that the electronic autobalance digital display instrument with velocity feedback(PD controller)has some advantage,such as small overshot,short settling time and simple program,etc.And it can suitable for the real application.

关 键 词：自动平衡式 数字显示仪表 数字控制器 动态性能 建模 MATLAB仿真 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]