摘要： 矢量控制系统的研究使交流电机的励磁电流和转矩电流不再相互影响,使其解耦和转矩控制不再困难，是交流电机逐渐成为调速领域主流的关键。矢量控制技术提高了交流电机的稳定和效率。在本篇论文中，先是通过对交流异步电机的矢量控制系统进行研究并设计出异步电机的动态数学模型，然后在此基础上采用MATLAB/SUMLINK中内含的功能元器件, 建立各元件并搭建，建立出电动机的仿真的模型，通过调试参数并仿真，证明了矢量控制技术对交流电机的调速有着重要作用，最后在模型的基础上引入模糊自适应PID控制器设计并进行仿真，仿真所得图形结果证明了加入模糊PID控制器的交流电机矢量控制系统较普通的交流电机矢量控制系统有了更好的鲁棒性，且工作效率较之也更为高效，极大提高了电机的性能。70188

毕业论文关键词： 交流电机；矢量控制；MATLAB/SIMULINK；模糊PID；自适应控制

Simulation of AC motor vector control system

Abstract: The research of the vector control system makes the excitation current and torque current of the AC motor no longer affect each other and the torque control is no longer difficult, which is the key to the mainstream of the speed control field. Vector control technology improves the stability and efficiency of AC motors. In this paper, the vector control system of AC induction motor is researched and the dynamic mathematical model of induction motor is designed. Then, the functional components included in MATLAB / SUMLINK are used to establish the components. It is proved that the vector control technology plays an important role in the speed regulation of the AC motor. Finally, the fuzzy adaptive PID controller is designed and simulated on the basis of the model. The results show it is effective, The simulation results show that the AC motor vector control system with fuzzy PID controller is more robust than the conventional AC motor vector control system, and the efficiency is more efficient than that of the motor. Performance. 

Keywords: AC motor; Vector control; MATLAB/SIMULINK; fuzzy PID; Adaptive control

目录

摘要 i

Abstract i

目录 ii

1 绪论 1

1.1 交流电机的发展趋势 1

1.2 加入模糊PID的交流电机矢量控制系统 2

1.3 研究背景和意义 3

1.4 主要研究内容及安排 4

2 MATLAB及SIMULINK的介绍与应用 5

2.1 MATLAB的发展 5

2.2 SIMULINK的应用 5

2.3 模糊逻辑工具箱 6

2.4 MATLAB环境下的SIMULINK的应用 6

2.4.1 MATLAB 环境中启动SIMULINK 的方法 6

2.4.2 打开SIMULINK 模型窗口的方法 6

2.4.3 SIMULINK 仿真基本步骤 6

3 矢量控制异步电机 7

4 α-β的异步电动机模型 9

4.1 坐标变换原理 9

4.1.1 功率不变约束 9

4.1.2 合成磁动势不变约束