【摘要】：在實(shí)際生產(chǎn)過程中,經(jīng)常控制的被控對(duì)象是電動(dòng)機(jī),由電動(dòng)機(jī)組成的各種控制系統(tǒng),在現(xiàn)代電機(jī)控制中,經(jīng)常采用以微處理器作為核心控制器,采用全控驅(qū)動(dòng)型電力電子器件變換裝置作為相應(yīng)的執(zhí)行機(jī)構(gòu),一般電氣傳動(dòng)控制系統(tǒng)采用轉(zhuǎn)速閉環(huán)控制策略,從而保持轉(zhuǎn)速在一定的精度范圍之內(nèi),滿足生產(chǎn)負(fù)荷的需求。根據(jù)電氣傳動(dòng)輸入電源的不同,主要分為電流電動(dòng)機(jī)傳動(dòng)和交流電動(dòng)機(jī)傳動(dòng)。在要求調(diào)速性能較高的場(chǎng)合,一般都采用直流電氣傳動(dòng)。在大功率可逆調(diào)速系統(tǒng)中,晶閘管具有天然的優(yōu)越性,因此由晶閘管組成的直流電機(jī)電樞可逆調(diào)速系統(tǒng)在大功率、高精度等方面得到了廣泛的應(yīng)用。同時(shí),由晶閘管可逆調(diào)速系統(tǒng)可以方便地實(shí)現(xiàn)直流電機(jī)的可逆運(yùn)行和能量的回饋制動(dòng),在實(shí)現(xiàn)正轉(zhuǎn)到反轉(zhuǎn)和反轉(zhuǎn)到正轉(zhuǎn)的過程中,可實(shí)現(xiàn)平滑的速度轉(zhuǎn)換,同時(shí),電樞電流沒有死區(qū),保證了電樞電流的連續(xù)性。通過仿真的手段研究調(diào)速系統(tǒng)是常用的手段之一。通過仿真可以簡(jiǎn)化實(shí)際調(diào)速系統(tǒng)搭建的時(shí)間并且提高穩(wěn)定性與安全性。本文應(yīng)用MATLAB下的Simulink中的基本模塊以及電氣工具箱中的專業(yè)模塊,搭建了一個(gè)仿真系。并且應(yīng)用腳本命令建立了直流調(diào)速系統(tǒng)的數(shù)學(xué)模型,應(yīng)用于計(jì)算系統(tǒng)參數(shù)并且與仿真無縫對(duì)接�？蛇\(yùn)用到工程當(dāng)中。最后使用GUI圖形用戶界面對(duì)仿真與腳本進(jìn)行控制,得到結(jié)果。
[Abstract]:In the actual production process, the controlled object is the motor, which is composed of various control systems. In the modern motor control, the microprocessor is often used as the core controller. The full control drive power electronic device conversion device is used as the corresponding actuator, and the general electric drive control system adopts the speed closed loop control strategy to keep the speed within a certain precision range and to meet the demand of production load. According to the electrical drive input power, mainly divided into current motor drive and AC motor drive. In the case of high speed regulation performance, DC electric drive is generally used. The thyristor has the natural superiority in the high power reversible speed regulation system, so the DC armature reversible speed regulating system composed of the thyristor has been widely used in the high power, high precision and so on. At the same time, the reversible operation and energy feedback braking of DC motor can be easily realized by the thyristor reversible speed control system, and the smooth speed conversion can be realized in the process of positive to reverse and reverse to positive turn, at the same time, The armature current has no dead zone, which ensures the continuity of armature current. It is one of the common methods to study the speed regulation system by simulation. The simulation can simplify the time of setting up the actual speed control system and improve the stability and security. In this paper, a simulation system is built by using the basic module of Simulink and the professional module of electric toolbox under MATLAB. The mathematical model of DC speed regulation system is established by script command, which is used to calculate system parameters and connect seamlessly with simulation. Can be applied to engineering. Finally, GUI graphical user interface is used to control the simulation and script, and the results are obtained.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM33
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本文編號(hào)：2210970