Here the system is similar to open - loop control system 二階欠阻尼振蕩系統是系統中較為常見的控制系統。
Open - loop control system 開環控制系統
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 在開環控制系統的仿真中,推導出一種異步電動機在mt坐標系下的仿真模型,該模型具有結構簡單、靜態、動態性能良好的特點,同時這個仿真模型也用于閉環系統。
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 目前在工業應用中,大多數采用的是普通的開環控制,閉環控制中應用的也僅僅采用了pid ,因此在時間和效率上都沒有達到最優。本文根據這種現狀,對apc控制系統進行開發和應用。目前,在工業控制中, pid調節和模糊控制應用的比較多,也比較成熟,但在位置控制系統中,都沒有充分的發揮出這兩種控制方法的特點。
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 本文對異步電動機變頻調速系統進行了研究,利用異步電動機在二相同步旋轉mt坐標系下的數學模型,使用matlab中的仿真工具箱simulink分別對開環控制系統和閉環矢量控制變頻調速系統進行了仿真。