摘要近些年科学技术发展十分迅速,永磁同步电动机(PMSM)因为其优越的性能而获 得了广泛的发展和应用。电子、计算机以及电力电子等技术的快速发展促进了交流电 气传动控制的提升,控制理论的进步是先进的永磁同步电机控制策略的理论依据。特 别是在高精度和高可靠性控制系统中,永磁同步电机已逐步成为主流电机。加之我国 稀土资源比较丰富,这就为永磁同步电机的控制研究提供了基础,使之快速成为电机 控制领域的重点和热点。 84865
为了提高永磁同步电机控制系统的控制性能,使其达到更快的响应速度,高精度 的动稳态性能的控制效果,本文提出了定子最小电流控制和 id=0 控制的矢量控制理 论。这篇文章首先建立了永磁同步电机的数学模型,并探讨了永磁同步电机的运行特 点和定子最小电流比和 id=0 控制机理。建立 SVPWM 控制模块控制逆变器功率开关管 的通断。仿真结果表明取得了较好的控制效果。
毕业论文关键词:永磁同步电机,矢量控制理论,SVPWM,定子最小电流,id=0 控制
Abstract In recent years, the development of science and technology is very rapid, permanent magnet synchronous motor (PMSM) because of its superior performance and get a wide range of development and application。 The rapid development of electronic, computer and power electronics technology has promoted the improvement of AC drive control, and the progress of control theory is the theoretical basis of advanced permanent magnet synchronous motor control strategy。 Especially in high precision and high reliability control system, permanent magnet synchronous motor has become the main motor。 In addition, China's rare earth resources are rich, which provides a basis for the control of permanent magnet synchronous motor, so that it has become the focus and hot spot in the field of motor control。
In order to improve the control performance of the system control of permanent magnet synchronous motor to achieve faster response speed and high precision dynamic steady state performance of the control effect, this paper presents the minimum stator current control and id = 0 control of vector control theory。
In this paper, the mathematical model of permanent magnet synchronous motor is established, and the operation characteristics of permanent magnet synchronous motor and the minimum current ratio of the stator and the control mechanism of id=0 are discussed。 The SVPWM control module is established to control the power switch tube of the inverter, and the two control methods are compared。 The simulation results show that the control effect is good。
Key words: permanent magnet synchronous motor, vector control theory, SVPWM, minimum stator current, id=0 control
目录
第一章 绪论 。 1
1。1 研究背景 。 1
1。3 本文的主要内容 。 2
第二章 永磁同步电机工作原理 。 3
2。1 永磁同步电机的分类 。 3
2。2 永磁同步电机的特点 。 4
2。3 永磁同步电机的内部构造 。 5
2。4 永磁同步电动机的工作原理 。 7
第三章 永磁同步电机的矢量控制系统 。 8
3。1 永磁同步电动机的矢量控制介绍 。 8
3。2 电动机控制中采用的坐标系 8
3。2。1 三相静止坐标系 8
3。2。2 两相静止坐标系