基于RTW的空间矢量脉宽调制的DSP控制系统

作者：孔 涛，李建勇*，王 恒，聂 蒙 日期：2010-11-15/span> 浏览：3768 查看PDF文档

基于RTW的空间矢量脉宽调制的DSP控制系统
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孔 涛，李建勇*，王 恒，聂 蒙

（北京交通大学 机械与电子控制工程学院，北京 100044）
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摘要：针对控制器快速原型化的设计概念，提出了基于实时代码生成工具（RTW）的空间矢量脉宽调制的数字信号处理器（DSP）控制系统的设计方法。基于七段式空间矢量脉宽调制（SVPWM）算法与Matlab/Simulink工具箱建立了系统的算法模型，实现了从模型到实时代码的转换。基于Matlab F2812 eZdsp子模块生成的代码使DSP通用定时器工作在连续递增/递减计数模式，通过CCS软件编译、下载移植可执行文件到TMS320F2812 DSP目标板上实现了在线实时仿真调试与验证。研究结果表明，该设计方法实现了工程开发从算法设计到最终实现的所有阶段，提高了产品开发效率，降低了成本。
关键词：实时代码生成工具；空间矢量脉宽调制；TMS320F2812；数字信号处理器；CCS
中图分类号：TM921.52
文献标识码：A文章编号：1001-4551(2010)09-0006-06

DSP control system for SVPWM based on RTW
KONG Tao, LI Jianyong, WANG Heng, NIE Meng
（School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China）

Abstract: In view of the rapid prototype design of the controller, a design method of the digital signal processor(DSP) control system of the space vector pulse width modulation(SVPWM), based on realtime workshop(RTW) was discussed. The model transformed to the real time code, based on the 7segment SVPWM algorithm and Matlab/Simulink toolbox were built. The codes generated by Matlab F2812 eZdsp made the DSP T1CON work in the continuousascending or continuousdescending mode. And the executable file compiled by the TI DSP CCS was downloaded into the TMS320F2812 DSP chip to carry on realtime online debugging and verification. All the development process from algorithm scheme to the realization, were integrated by this method. The result shows that the efficiency of product development is improved, and the manufacturing cost is reduced.
Key words: realtime workshop(RTW); space vector pulse width modulation(SVPWM); TMS320F2812; digital signal processor(DSP); CCS