交流异步电动机调速系统仿真研究.doc

交流异步电动机调速系统仿真研究

本人原创毕业作品，一手资料

摘要
    在用电系统中，电动机一直处于非常重要的位置。随着我国经济的不断发展，异步电动机在越来越多的行业发挥着很重要的作用，广泛的被应用于农业生产，国防，科技以及社会生活等方面。异步电动机的调速方法比较多，一开始人们广泛使用直流调速，但是由于存在换向器，给其调速带来了限制。随着电力电子技术的不断发展，使得交流调速优势逐渐超越直流调速，因此使得研究异步电动机调速问题变的重要。全文主要讨论在鼠笼型异步电动机动态模型的条件下，通过利用矢量控制和PWM变频技术在异步电动机里进行调速应用，先设计完整的矢量控制变频调速系统的设计，然后通过MATLAB软件里面Simulink仿真平台对调速系统进行仿真，并根据仿真结果分析得出此种调速方法的特性。

关键词：异步电动机，矢量控制，变频调速，电力电子技术，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