相異步電機畢業(yè)設(shè)計(已修改)
2025-06-23 01:03 本頁面
【正文】 I 摘 要 隨著電機控制技術(shù)的不斷發(fā)展 ,在 實際 中應(yīng)用越來越多的交流調(diào)速系統(tǒng)已經(jīng)取代了直流調(diào)速系統(tǒng)。由于異步電機是一種復(fù)雜的多變量 的 、強耦合的非線性系統(tǒng) ,所以利用計算機仿真的辦法構(gòu)造一個實驗系統(tǒng)進行異步電機的分析是一種很好的研究手段。 本文主要首先介紹三相異步牽引電動機結(jié)構(gòu)和構(gòu)造建立電機數(shù)學(xué)、物理模型，對比直流電機電磁轉(zhuǎn)矩和異步電動機電磁轉(zhuǎn)矩，結(jié)合矢量控制的基本思想和基本概念，完成了對三相交流異步牽引電動機在三相靜止坐標和兩相靜止坐標系上的數(shù)學(xué)模型，經(jīng)過坐標轉(zhuǎn)換得到交流牽引電機的模型。然后通過 Matlab/Simulink 的模塊簡化搭建功能完成三相異步牽引電動機最終的仿真模型，并在 Mutlab 系統(tǒng)環(huán)境下實現(xiàn)對電動機的仿真，觀察異步電機空載轉(zhuǎn)矩和負載轉(zhuǎn)矩過程中的電流、轉(zhuǎn)速、轉(zhuǎn)矩的變化，對結(jié)果與理論結(jié)果進行比對分析，證實了該方法的簡便直觀、高效快捷和真實準確性。 關(guān)鍵詞：異步電機；建模；仿真；坐標變換； II Abstract With the development of motor control technology, AC drive system is used more and more in practice has replaced the DC speed regulating system. The asynchronous motor is a strongly coupled nonlinear system is a plex multivariable, using the way of constructing, analysis and puter simulation of an experimental system of asynchronous motor is a very good research tools. This paper first introduces the structure and the structure of three phase a synchronous traction motor mathematical, physical model of motor, pared with DC motor electromagic torque and asynchronous motor electro magic torque, bined with the basic theory of vector control and the basic concept,the mathematical model in the threephase static coordinate and twophase static coordinate system on the three phase asynchronous traction motor, the AC traction the motor model to get the coordinate conversion. Then through the Matlab/Simulink module to simplify the building function to finish the simulation model of the threephase asynchronous traction motor end, and realize the simulation of the motor in the environment of Mutlab system, variable current,speed, torque of asynchronous motor load torque and load torque in the process, the results were pared with the theoretical results and analysis,confirmed this method simple and intuitive, fast and accurate. KeyWords: Induction motor, Modeling, Simulation, Coordinate transformation 目 錄 摘 要 ................................................................................................................................. I Abstract .............................................................................................................................. II 目 錄 ........................................................................................................................... III 1 緒論 ................................................................................................................................ 1 研究背景及意義 .....................................................................................
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