并联逆变器监控通讯技术研究.doc

目  录
摘  要………………………………………………………………………  1
ABSTRACT………………………………………………………………  3
0 引言………………………………………………………………………  5
0．1 课题研究的主要内容………………………………………………  5
0．2 课题研究的背景……………………………………………………  5
0．3 课题研究发展趋势…………………………………………………  7
0．4 本章小结……………………………………………………………  11
1 基于数字信号处理器TMS320LF2812的通信硬件设计……………  11
1．1 数字信号信号处理器开发板选型…………………………………  11
1．2 串行通信接口RS-232的硬件电路设计…………………………  16
1．3 监控系统功能结构…………………………………………………  20
2 基于数字信号处理器TMS320LF2812 SCI程序设计………………  22
2．1 软件开发平台Code Composer Studio(CCS)简介…………………  22
2．2 TMS320LF2812的SCI功能介绍…………………………………  23
2．3 SCI程序设计…………………………………………………  27
2．4 DSP2812的采样程序设计………………………………………  29
2．5 本章小结……………………………………………………………  31
2 上位机监控界面设计…………………………………………………  31
2．1 Visual C++ 6.0概述…………………………………………………  32
2．2 VC++ 6.0建立应用程序……………………………………………  32
2．3 MSComm控件介绍…………………………………………………  43
2．4 串行通信传输方式的选取…………………………………………  44
2．5 握手协议设计………………………………………………………  46
2．6 监控软件流程设计…………………………………………………  47
2．7 本章小结……………………………………………………………  51
3 监控系统的测试………………………………………………………  52
3．1 硬件测试……………………………………………………………  52
3．2 硬件系统搭建………………………………………………………  53
3．3 实验结果……………………………………………………………  59
4 结论……………………………………………………………………  60
参考文献…………………………………………………………………  61
附 录………………………………………………………………………  64
1 基于DSP TMS320LF2812的编程代码………………………………  64
2 基于VC++6.0监控界面编程代码……………………………………  73
译 文………………………………………………………………………  96
译文1：基于DSP和CAN总线的织机监控系统的研究………………  96
译文2：基于CAN总线的通信转换器设计……………………………  103
原文说明…………………………………………………………………  109

摘  要

　　　随着电力电子技术的发展在分布式能源研究等领域的广泛应用，逆变器的设计、应用和监控的方式也在不断研究中更新换代。电源系统应用领域对供电系统的要求也越来越高，大功率容量、高可靠性、模块化等逐渐成为各领域对供电系统性能的新要求，传统的集中式供电方式已经不能满足这些要求。多个电源模块并联实现扩容可大大提高系统的灵活性，使电源系统的体积重量大为降低，各个模块处于均流运行时，其主开关器件的电流应力也可大大减少，从根本上提高可靠性、降低成本。伴随着上述问题的出现，并联逆变电源通信监控技术的研究也在不断精进，成为交流电源系统从传统的集中式供电向分布式供电乃至智能电源系统供电模式发展过程中必须解决的课题。
　　　本课题研究的基于RS232总线的并联逆变电源通信监控系统，利用TI公司的TMS320FL2812的32位定点DSP的SCI通信模块，通过RS232总线从各并联模块获取并解析现场控制数据，响应现场强实时性操作，实现对模块工作的调度监控，具有结构简洁、扩容方便及可靠性高的优点。上位机界面基于Visual C++集成开发环境，MFC（Microsoft Foundation Classes）是Microsoft公司定制的应用程序包装接口，极大的方便了设计人员对用户界面的设计以及对数据库的访问[1]。
　　　本文介绍的内容主要包括一下几个部分：基于串口RS-232的硬件特性介绍以及电路设计；基于DSP2812开发板设计串口通信SCI软件程序设计；基于VC++的上位机人际交互界面程序的设计；最后，课题中设计了监控系统的可靠性、实时性验证分析，论证软硬件设计的实用性。
　　　
关键词：并联逆变器，TMS320FL2812，SCI，MFC

The Research Of The Monitor Of The Parallel-inverter System
ABSTRACT
　　　For the increasing of the promotion and expansion of the power system applications, the requirements of the power supply system is also getting higher and higher. The high-power capacity, high reliability, modular becoming the new requirements of the various fields on the performance of the power supply system, the traditional centralized power supply the way has been unable to meet these requirements. Multiple power modules in parallel expansion can greatly improve the flexibility of the system, reduced the size of the weight of the power supply system. Each module in the current run, the main switching device current stress can be greatly reduced, and fundamentally improve the reliable and reduce costs.
　　　The parallel inverter communication monitoring technology is one of the issues that must be addressed to the distributed power supply in AC power system and even intelligent power supply system model development process from the traditional centralized power. Of this research project is based on RS232 bus parallel inverter communication monitoring system, using TI's TMS320LF2812 of 32-bit fixed-point DSP the SCI communication module via RS232 bus from parallel modules to obtain and parse site control data in response to field strong real-time operation, to achieve the control and supervision of the module work, has a simple structure, easy expansion and high reliability.
　　　Described in this article includes several parts: hardware features as well as circuit design based on serial RS-232; SCI serial communication software design based on DSP2812 Development Board; VC++ PC-based design of human interface program. Finally, this subjects analysis on reliability and real-time validation in the design of the monitoring system, demonstrate practicality of the software and hardware design.
　　　
Keywords: Parallel-inverter System，TMS320FL2812，SCI，MFC