交流異步電動機調(diào)速系統(tǒng)仿真研究

本人原創(chuàng)畢業(yè)作品，一手資料

摘要
    在用電系統(tǒng)中，電動機一直處于非常重要的位置。隨著我國經(jīng)濟的不斷發(fā)展，異步電動機在越來越多的行業(yè)發(fā)揮著很重要的作用，廣泛的被應用于農(nóng)業(yè)生產(chǎn)，國防，科技以及社會生活等方面。異步電動機的調(diào)速方法比較多，一開始人們廣泛使用直流調(diào)速，但是由于存在換向器，給其調(diào)速帶來了限制。隨著電力電子技術(shù)的不斷發(fā)展，使得交流調(diào)速優(yōu)勢逐漸超越直流調(diào)速，因此使得研究異步電動機調(diào)速問題變的重要。全文主要討論在鼠籠型異步電動機動態(tài)模型的條件下，通過利用矢量控制和PWM變頻技術(shù)在異步電動機里進行調(diào)速應用，先設計完整的矢量控制變頻調(diào)速系統(tǒng)的設計，然后通過MATLAB軟件里面Simulink仿真平臺對調(diào)速系統(tǒng)進行仿真，并根據(jù)仿真結(jié)果分析得出此種調(diào)速方法的特性。

關鍵詞：異步電動機，矢量控制，變頻調(diào)速，電力電子技術(shù)，MATLAB，仿真

 Abstract
In the electricity system, the motor has been in a very important position. as our economic development, asynchronous motor in more and more industries to play an important role in wide use in agriculture, national defense technology and social life. the asynchronous method of the motor machinery velocity modulation, a more widely used a direct machinery velocity modulation, but because of the machinery velocity modulation commutator to bring power. with continuing development of electrical machinery velocity modulation, communication is beyond direct superior machinery velocity modulation, so the asynchronous motor machinery velocity modulation of an important problem. it is mainly discussed in the rat's cage, asynchronous motor dynamic model conditions, by using vector control and pwm frequency conversion  technology in an asynchronous motor for machinery velocity modulation application, and the design of a vector frequency conversion machinery velocity modulation control system design

Keywords：asynchronous motor , frequency control，the electrical machinery velocity modulation, electronics technique, simulations, MATLAB