随着电力电子技术和现代变频调速的发展，以及交流电动机矢量控制理论的提出，使变频器的技术有了很大的发展。近年来，智能控制在电机调速方面也有着很大的发展，而模糊控制理论作为智能控制的一个分支，应用到异步电动机矢量控制理论中，能够进一步提高电动机调速的动静态性能。 本文根据三相异步电动机的数学模型和矢量控制的基本原理，分析研究了异步电动机的矢量控制系统，将传统的ASR转速调节器中的PID控制进行了改进，将其设计为自适应模糊PID控制，并建立了带转矩内环的转速、磁链闭环矢量控制系统仿真模型，对传统的PID控制及自适应模糊PID控制进行比较。本文研究的主要内容可分为三部分： 首先，介绍了交流调速及变频器技术的发展概况以及智能控制理论在电气传动系统中的应用，分析了异步电动机的矢量控制方法。本文采用了二相旋转坐标系中的转子磁链观测器来确定转子磁链的位置，采用了电流滞环脉冲发生器输出触发脉冲，并且建立了矢量控制调速系统。 其次，介绍了PID控制原理和自适应模糊PID控制原理，对阶跃信号进行仿真实验。验证自适应模糊PID控制的响应速度快的优点。 接着，利用Matlab/Simulink建立仿真模型，建立了带转矩内环的转速、磁链闭环矢量控制系统仿真模型，分别将传统PID控制与自适应模糊PID控制应用于ASR转速调节器中，通过仿真实验，验证了相对应传统PID控制而言，自适应模糊PID控制具有响应速度快，超调量低的优点。 最后总结了本文所做的工作，并对今后的研究做出了分析与展望。

With the development of power electronics technology and modern frequency control, and the proposal of the AC motor vector control theory, the inverter technology has been greatly developed. Moreover, in recent years, intelligent control got great development in terms of motor speed control, and fuzzy control theory, as a branch of intelligent control, was applied to the theory of induction motor vector control, which can further improve the static and dynamic performance. Based on the three-phase induction motor mathematical model and the basic principles of vector control, this thesis analyzes induction motor vector control system, improves the traditional ASR speed regulator PID control, adopts adaptive fuzzy PID control, and sets up the simulation model of the speed with torque inner loop and closed-loop vector control system, compares the traditional PID control with adaptive fuzzy PID control. The main content of this study can be divided into three parts. Firstly, the study gives an overview of the development of AC variable speed and inverter technology and intelligent control theory in the electric transmission system, analyzes the asynchronous motor vector control method. This paper employs the rotor flux observer in two-phase rotating coordinate system to determine the position of rotor flux, and the hysteresis current pulse generator to generate the trigger pulse, and establishes the vector control. Secondly, the PID control and adaptive fuzzy PID control principle is introduced to make the simulation for the step signal. And it verifies the advantage of fast response of the adaptive fuzzy PID control. Thirdly, by Matlab/Simulink, this paper sets up the simulation model of the speed with torque inner loop and closed-loop flux vector control system. It also applies the traditional PID control and adaptive fuzzy PID control to the ASR speed controller, proves that the adaptive fuzzy PID control has the advantages of fast response, low overshoot. Finally, the study makes the summary to this article, and gives the analysis and prospect for the future research.