1) Relay feedback identification
继电反馈辨识
1.
Using hysteresis relay feedback identification method to obtain parameters can reduce disturbance error,and acquire more accurate identification results.
调整PID参数,具有重要意义,文中提出用滞环继电反馈辨识方法来获得参数,能够减小扰动误差,获得更精确的辨识结果。
2.
The autotuning PID/ PI based on the improved relay feedback identification is proposed and it is applied in the typical long time lag and large inertia ob- ject— the moisture and basis weight control system of paper machine, and it has been proved that the control effect is satisfactory.
要:分析和研究了常规PID算法不适应用于大时滞过程控制的一些主要因素,有针对性 地提出了基于改进型继电反馈辨识方法的PID/PI自整定控制策略,并将其应用于典 型的大时滞大惯性对象——纸机的水分定量控制系统中,系统运行结果证明控制效 果良好。
2) model identification based on the relay-based feedback
基于继电反馈的模型辨识
3) feedback identification
反馈辨识
1.
Close-loop feedback identification with saturation elements;
具有饱和环节的闭环反馈辨识
4) relay identification
继电辨识
1.
Aiming at the characteristics of EFMTZ(electrical furnace multiple temperature zone),such as large delay,time variety,strong coupling,a kind of method based on relay identification model is presented in this paper.
针对多温区电加热炉大时滞、时变性强、强耦合和对象模型难以确定等特点,提出一种基于继电辨识模型的PID自整定算法,该法将Smith预估算法、继电辨识和模糊控制相结合,用继电反馈法在线辨识出Smith预估所需要的对象模型,并整定出控制器PID的初始值,在此基础上,对系统进行Smith预估补偿的同时利用模糊控制在线修正PID参数。
2.
A PID parameter self-tuning method is introduced based on relay identification,amplitude and phase margin theory.
基于继电辨识及相位、幅值裕度的理论,提出一种基于幅频裕度配置PID参数自整定方法,并按照相应理论完整设计了软件。
3.
Standard relay identification method has many advantages,such as testing without independent signal generator and testing in close-loop,however this method has lower precision.
标准继电辨识的方法测试过程不需要独立的信号发生装置、测试过程中调速系统处于闭环状态,能够有效抑制扰动,最大限度减小测试对调速系统的影响等,但该方法辨识精度较低。
5) relay feedback
继电反馈
1.
The self-tuning technology based on relay feedback effectively solves the problem of artificial tuning.
常规的PID参数整定都是由人工完成的,因而存在着人工整定自身所不能克服的缺点,基于继电反馈的PID参数自整定技术有效地克服了人工整定的缺陷。
2.
A relay feedback test approach was proposed to estimate the system s two measurements of frequency domain.
提出一种基于继电反馈测试的方法,在线测量实时控制系统的两个频域指标,并在此基础上进行PI控制器的参数调整,以保持系统的闭环性能。
3.
A relay feedback based closed-loop identification method was proposed for identifying the general process model in model predictive control.
针对模型预测控制中过程模型的辨识问题,提出了一种基于继电反馈的预测模型闭环辨识方法。
补充资料：肌电反馈仪
肌电反馈仪
EMG feedback equipment
肌电反馈仪(EMG feedbaek equipment)能测定身体表面肌电电压的幅度并显示反馈指示信号的生物反馈仪器。EMG反馈仪的传感器是银/氯化银材料制成的表面电极，仪器的电路部分包括差分放大器(放大有用信号，抑制无用信号)、信号滤波器(选择肌电信号中特定的频率成分)、检波器(将交流信号转换成直流信号)、积分器(收集、存储、累积输入信号)、电平检测器(自动比较被测信号与预定信号大小)和视觉或听觉反馈信号。大多数EMG反馈仪的精度在]0%一15%范围之间，高精度的EMG反馈仪能分辨肌电信号的微小变化，一个病人通过放松训练使其肌电压降至2微伏，则实际的电压误差为士0.2一士0.3微伏。一般 EMG反馈仪都有调节放大器增益的控制开关，当肌电压己经降到几个微伏时，加大增益便能察觉0.1微伏的肌电压变化。仪器的阂限开关则是设定训练所要达到的标准。肌电反馈仪是最常用的生物反馈仪器。理想的肌电反馈仪应具备体积小、精度高、功能全、便于操作、有数据处理功能等优点。 (杨立能撰梁宝勇审)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条