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1、CENTRAL SOUTH UNIVERSITY本科生毕业论文(设计)题题 目:目: 基于基于 DSP 直流可逆调速系统的设计直流可逆调速系统的设计 学生姓名:学生姓名: 指导教师:指导教师: 学学 院:院: 信息科学与工程学院信息科学与工程学院 专业班级:专业班级: 完成时间:完成时间: 20122012 年年 6 6 月月 I摘 要伴随着科技的进步和工业控制数字化的到来,直流电动机的结构和控制方式都发生了很大变化。为满足现代工业需求,实现精准、高效的全数字化控制使得电机的控制要求越来越高,人们开始不断寻求最为有效、集成度最高、控制最精确的控制方式。随着新型电力电子器件的不断出现和计算机控制
2、技术的发展,一种采用全控型开关功率元器件进行脉宽调制(Pulse Width Modulation,简称 PWM)的控制方式逐渐成为主流。与此同时,高速数字信号处理器问世并不断发展,使得基于高速处理器(DSP)的全数字化电机控制方式成为可能,并在实际应用中发挥强大的作用,明显改善控制系统性能,提高生产效率。本文在深入分析直流脉宽可逆调速系统的工作原理和数学模型的基础上,对其全数字化控制技术及其模糊控制策略进行了系统研究。论文首先简要叙述了课题的研究背景,介绍电机拖动在国内外的发展简况以及直流调速系统的发展历史。论文立足于工程实际应用,基于设计要求,深入分析直流脉宽调速系统原理,设计相关的硬件电
3、路和软件算法,并对 PI 控制算法与模糊控制算法进行研究。本方案选用德仪公司生产的电机专用数字信号处理芯片 TMS320F2407A,完成了直流可逆调速系统的控制器设计与制造。并在此基础上分析了控制策略以及在传感器检测、电机驱动、主功率电路应用、人机交互和通讯接口等方面展开了讨论。完成了相关的硬件设计并在实际中加以检验。关键词:直流可逆调速系统、PWM、DSP、硬件设计、PI 控制和模糊算法IIABSTRACTAlong with advances in technology and the arrival of the digital industrial control, the stru
4、cture and control methods of DC motor have undergone great changes. In order to meet the needs of modern industry, what achieve accurate, efficient all-digital control makes the motor control of increasingly high demand. People began to seek the most effective, the most integrated and the most accur
5、ate way to control. With continual emergence of new power electronic devices and development of computer control , a full-controlled switching power components for pulse width modulation (Pulse Width Modulation, PWM) control is becoming the mainstream. At the same time, the high-speed digital signal
6、 processors come out and continues to develop, making the all-digital high-speed processor (DSP)-based motor control as possible and play a strong role in practical applications, significantly improving the control system performance and increasing the productivity .On the base of the analysis of th
7、e working principle and the mathematical model of DC PWM reversible speed control system ,the digital control technology and the fuzzy control strategy have been systematically studied.This paper briefly describes the research background and introduces motor drag in the development history of domest
8、ic, international profiles and the DC Speed Control System. The thesis is based on the practical application of engineering-based design requirements, in-depth analysis of the principle of DC PWM speed control system, the design of hardware circuitry and software algorithms, and the PI control algor
9、ithm and fuzzy control algorithm.This paper selected the digital signal processing chip of TMS320F2407A produced by the Texas Instruments. And this paper analyzed the strategy as well as the sensor detectors,the motor drive, human-computer interaction communication interface, the main power circuit
10、applications. Finaly I complete the hardware design and test them in practice.KEYWIIIORDS: DCreversiblespeeIVdcontrolsystem,PWM,VDSPhardwaredesign,tVIhePIcontrolandfuzzVIIyalgorithmIII目录摘 要.IABSTRACT.II目录.II第一章 绪论.21.1 本课题的研究背景和意义.2 1.2 国内外电机拖动发展简况.2 1.3 直流调速系统的发展历史.2 1.3.1 G-M 系统.2 1.3.2 静止式可控整流器.2 1.3.3 直流脉宽调速系统.2 1.4 本论文主要内容及设计要求.2第二章 PWM 直流可逆调速系统原理.22.1 直流调速系统的控制方法.2 2.2 H 型可逆 PWM 系统 DSP 控制分析.2 2.2.1 单极性可逆 PWM 变换器.2 2.2.2 双极性可逆 PWM 变换器.2第三章 基于 DSP 控制系统的硬件设计.