摘要：近几年来，交流电机变频调速及其相关技术的研究己成为现代电气传动领域的一个重要课题，并且随着新的电力电子器件和微处理器的推出以及交流电机控制理论的发展，交流变频调速技术还有很大的进步空间。转差频率控制的异步电动机调速系统是一项性能较好的控制策略，它几乎可以获得像直流电动机一样好的动、静态性能，且其结构也不复杂。所以转差频率控制的异步电动机调速已经成为了电力拖动课程的重要教学内容了。22895
本文基于MATLAB对转差频率控制的异步电机调速系统进行设计与仿真研究。首先对转差频率控制技术的基本概念、控制规律等进行阐述。之后分析了转差频率控制的异步电动机调速系统结构，并在Matlab/Simulink环境下，构建了系统的仿真模型，并详细介绍控制系统中的子模块。通过仿真试验对系统进行调试，最后对仿真结果进行总结分析。仿真的结果表明，采用转差频率控制的调速系统具有良好的控制性能。
毕业论文关键词：转差频率；交流调速；矢量控制；PWM；仿真
Design of Asynchronous Motor system Controlled with Slip Frequency
Abstract:In recent years, ac motor frequency control of motor speed and its related technology research has become an important topic in the field of modern electric drive, and as the new power electronic devices and the launch of the microprocessor and the development of control theory of ac motor,ac frequency conversion speed regulation technology has much more room for progress.Slip frequency control of induction motor speed control system performance is a better control strategy, it can almost get good static and dynamic performance as dc motor, and its structure is not complicated. So the slip frequency control of asynchronous motor speed regulation has become the important teaching contents in electric drive.
In this paper, based on MATLAB counter rotating difference frequency control of induction motor speed control system to carry on the design and simulation research. First the basic concept of counter rotating difference frequency control technology, control law, etc. After analyzed the slip frequency control of induction motor speed control system structure, and in the Matlab/Simulink environment, build simulation model of the system, and detailed sub modules of control system is introduced in this paper. Through the simulation test on the system debugging, and finally to summarize the results of simulation analysis. Simulation results show that the slip frequency control of speed control system has good control performance.
Keywords: slip frequency；AC variable speed；vector control；PWM；simulation
目录
摘要    I
Abstract    II
1绪论    1
1.1现代交流调速技术    1
1.1.1  现代交流调速技术的发展    2
1.1.2  交流调速的国内外现状    4
1.1.3现代交流调速系统的类型    4
1.1.4交流调速系统的发展趋势    5
1.2相关技术    5
1.3设计的主要内容    6
2系统设计的理论基础    6
2.1 转差频率控制    6
2.1.1 转差频率控制的基本概念    6
2.1.2 转差频率控制的控制规律    8
2.2 PWM调制技术    10
2.3 异步电机的三相数学模型    11
2.4 矢量控制技术    12
2.4.1 坐标变换    13
3 转差频率控制的异步电机调速系统设计    14
3.1转差频率矢量控制调速系统的工作原理    14
3.2系统主电路    17
3.2.1 SPWM电压型逆变器    17 MATLAB转差频率控制的异步电机调速系统设计:http://www.751com.cn/zidonghua/lunwen_15736.html