摘要
文中用于控制时间滞后系统的方法是一种新方法-PWM控制器.它在过程控制领域有它独特的优势。利用MATLAB中的Simulink仿真技术对采用PWM控制器的纯滞后模型(FOPDT)及(SO PDT)进行仿真。仿真时按滞后严重程度分为小滞后、大滞后,分比例和比例积分调节两种情况分别仿真。文中给出了部分仿真图形用来研究对不同的被控对象而言,PWM周期与控制指标之间的关系,进而确定采样周期T在每种情况下的合理范围。
In this paper the control method on object with time delay is a new-PWM controller, because ti has its particular advantages in the process control field. The MATLAB simulation technique is made use of to study how to design the PWM controller for a first order lag process with dead time (FOPDT) and a second order lag process with dead time (DOPDT). Some simulation figures are given to show the relations between the sampling period and controlling performance, and the sampling period' s coverage in every sense.
出处
《组合机床与自动化加工技术》
2005年第6期72-74,共3页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
脉宽调制(PWM)
纯滞后
仿真
pulse-width-modulation(PWM)
time delay
simulation
