Here the system is similar to open - loop control system 二阶欠阻尼振荡系统是系统中较为常见的控制系统。
Open - loop control system 开环控制系统
In the course of open - loop control system , the simulation model of asynchomous motor is obtained and realized in simulink . this simulation model ' s structure is simple and its static and dynamic performance is good 在开环控制系统的仿真中,推导出一种异步电动机在mt坐标系下的仿真模型,该模型具有结构简单、静态、动态性能良好的特点,同时这个仿真模型也用于闭环系统。
In order to improve producer ' s efficiency , the mechanism such as rolling mill and shearing machine , which requests position control can go to the position in the best times and in the best mode , now , in the industrial application , open - loop control system is more used , even though in the closed - loop control system only adopts pid regulator , so time and efficiency can not reach the best 目前在工业应用中,大多数采用的是普通的开环控制,闭环控制中应用的也仅仅采用了pid ,因此在时间和效率上都没有达到最优。本文根据这种现状,对apc控制系统进行开发和应用。目前,在工业控制中, pid调节和模糊控制应用的比较多,也比较成熟,但在位置控制系统中,都没有充分的发挥出这两种控制方法的特点。
This thesis make a study on vector - contorl wvf system of asynchronous motor . in the course of study , making use of the mathematical model of asynchomous motor in mt axes . then both open - loop control system and close - loop vector - control system are respectively simulated with simulation block simulink in matlab 本文对异步电动机变频调速系统进行了研究,利用异步电动机在二相同步旋转mt坐标系下的数学模型,使用matlab中的仿真工具箱simulink分别对开环控制系统和闭环矢量控制变频调速系统进行了仿真。