按转子磁链定向的矢量控制系统

中华人民共和国教育部

东北林业大学

毕业设计设计题目：按转子磁链定向的矢量控制系统设计学生：黄建龙

指导教师：李克新讲师

学院：机电工程学院

专业：电气工程及其自动化2007级3班

2011年6月

按转子磁链定向的矢量控制系统设计

摘要

本文在对交流异步电动机坐标变换原理的概念，异步电动机的数学模型和在不同坐标系上的数学模型表达方程式介绍的基础上，指出了异步电动机模型多变量、强耦合非线性的特点，介绍了SVPWM空间矢量变频调速技术，并对基于高速数字信号处理器（DSP）的交流电动机按转子磁链定向的矢量控制调速系统进行了研究。

本设计完成了基于TMS320F2812DSP的交流电机按转子磁链定向的矢量控制系统设计。

在系统总体设计方面，系统由功率电路、控制系统及辅助电路组成。功率电路包括整流电路、直流中间电路、逆变电路以及驱动电路等组成；控制电路由F2812芯片及其外围电路组成，用来完成矢量控制核心算法、SVPWM产生、相关电压电流的检测量处理等功能；辅助电路由开关电源、串行通信电路等组成，以实现给系统提供多路直流电源以及上位机的监控等功能。

系统硬件电路主要是由主电路、驱动电路、微控制电路、检测电路、信号采集与故障综合电路等组成；软件程序主要由主程序、中断程序以及键盘程序等组成。

关键字：SVPWM；矢量控制；磁链定向；DSP

The Design of Orientated by the Rotor Flux Vector

Control System

Abstract

In this paper, we introduces the ac induction motor concept, the principle of coordinate transformation of asynchronous motor in different reference frames mathematical model and mathematical model of the express equations, and pointed out the characteristics asynchronous motor model multivariable and strong coupling nonlinear characteristics, and introduced the SVPWM space vector, and the technology of frequency conversion based on high speed digital signal processor (DSP) according to the ac motor rotor flux vector control speed control system is studied.

This design completed the design of ac motor according to rotor flux vector control system based on TMS320F2812DSP.

In the design of the whole system, this system consists of power circuit, auxiliary circuit and control system. The Power circuit includes rectifier circuit, dc intermediate circuit, inverter circuits and drive circuit etc; Control circuit is composed of F2812 chip and its peripheral circuit, to complete vector control core algorithm, SVPWM production, related voltage current detection quantity processing function; Auxiliary circuit by switching power supply, Serial communication circuit etc, so as to realize the system to provide multi-channel to dc power supply and PC monitoring, and other functions.

The hardware circuit is mainly composed of main circuit, drive circuit, micro control circuit, detection circuit, signal acquisition and fault integrated circuit etc; Software program mainly by the main program, interruption program and keyboard program etc.

Key word: SVPWM;Vector control; Flux; DSP

目录

摘要

Abstract

1.绪论 .......................................................................................................... 错误!未指定书签。

1.1矢量控制技术的发展现状 ................................................................... 错误!未指定书签。

1.1.1交流电动机调速技术的发展现状 .................................................... 错误!未指定书签。