永磁同步电机全数字化控制系统设计 二

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永磁同步电机的全数字化控制系统
摘要：随着电力电子技术、计算机技术、自动控制技术的迅速发展，电气传动技术面临着一场历史革命，即交流变频调速取代直流调速和计算机数字控制技术取代模拟控制技术已成为发展趋势。交流变频调速技术是当今节能、改善工艺流程、提高产品质量和改善环境、推动技术进步的一种主要手段。变频调速以其优异的调速和起制动性能，高效率、高功率因数和节电效果，广泛的适用范围及其它许多优点而被国内外公认为最有发展前途的调速方式。
 数字信号处理器TMS320F240具有相当快的数字运算能力和丰富的输入输出设备及接口电路，本系统以TMS320F240芯片作为核心控制器件来组成伺服控制回路。本课题着重介绍了基于TMS320F240的全数字永磁同步伺服系统结构 ，软硬件设计，并给出了相应的硬件控制电路设计方案和相关的试验结果

关键词：数字信号处理器  永磁同步电动机  交流伺服

A Digital Control System of Permanent Magnet Synchronous Motor
Abstract：Namely along with the rapid development of power electronics technology, computer technology and automatic control technology, the electric transmission technology is being faced with a history revolution, it has become development trend that transferring speed replaces direct current accent speed and computer digital control technology replaces the simulating control technology. The electrical frequency conversion technology is one kind of major means of promotion technology to save energy and improve process flow in order to raise the product quality and improve environment. Frequency conversion is generally aknowledged by the home and abroad that it has a great future with excellent accent speed, a brake capability, extensive scope of application, high efficiency rate, great credit rate factor and joint electricity effect and other many merits.
 The digital signal processor-TMS320F240 possess the quite fast operational capability , the abundantI/0 devices and interfaces. TMS320F240 is used as the core to compose the control circuit in this system. In the paper, the construct ion, software design and hardware design of full digital PMSM servo system based on TMS320F240 are represented emphatically, the coherent design scheme of control circuit and the experimental results are showed.
Keywords：Digital Signal Processor（DSP）     Permanent Magnetic Synchronous Motor（PMSM）   AC Servo

目  录

摘要…………………………………………………………………………………Ⅰ
ABSTRACT…………………………………………………………………………Ⅱ
第1章   绪论………………………………………………………………………1
1.1  永磁同步电机的发展概况…………………………………………………….1
1.2  变频调速器的分类和选择…………………………………………………….3
1.3  变频调速的相关技术………………………………………………………….5
 1.3.1 关于电力电子技术…………………………………………………………5
 1.3.2 关于数字控制技术…………………………………………………………5
 1.3.3 关于数字控制器……………………………………………………………6
1.4  本文研究的目的和内容……………………………………………………….6
第2章   控制系统的技术理论基础………………………………………………7
2.1  PWM技术……………………………………………………………………...7
  2.1.1 关于SPWM调制变频技术………………………………………………..7
  2.1.2 关于电压空间矢量原理……………………………………………………9
2.2  矢量控制技术………………………………………………………………….12
  2.2.1 同步电机运动规律和数学模型……………………………………………12
  2.2.2 矢量控制原理………………………………………………………………16
  2.2.3 矢量控制方式………………………………………………………………18
2.3  同步电机变频调速…………………………………………………………….18
第3章   硬件电路的设计及实现………………………………………………..20
3.1  系统总体介绍………………………………………………………………….20
3.2  主回路设计…………………………………………………………………….20
3.3  DSP技术简介……………………………………………………………………………25
3.4  电机转速和位置检测电路…………………………………………………….29
3.5 其他电路设计………………………………………………………….………..30
第4章   控制系统的软件设计……………………………………………………33
4.1  系统软件设计总体流程介绍………………………………………………….33
4.2数字化矢量控制的软件构成……………………………………………………35
结束语………………………………………………………………………………..39
参考文献…………………………………………………………………………….40
致谢信………………………………………………………………………………..41
附录（程序清单）………………………………………………………..42

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