文档介绍：摘要
摘要
励磁控制器是同步发电机励磁系统的重要组成部分对同步发电机乃至电力
系统的安全稳定运行有着重要影响随着电力系统规模的不断增大系统结构和
运行方式日趋复杂对同步电机励磁控制器运行的可靠性稳定性经济性和灵
活性提出了更高的要求本文根据励磁控制器的国内外发展趋势研究和开发了
以 TMS320F2812 芯片为控制核心的同步发电机 DSP 励磁控制器
文中首先介绍了同步发电机励磁控制器的发展现状及趋势分析了励磁控制
器所存在的问题其次介绍了 DSP 的发展历程特点及应用范围通过 DSP 芯
片与其它控制芯片的性能比较选择以 TMS320F2812 作为励磁控制器的硬件核
心进而提出了基于 TMS320F2812 的励磁控制器的硬件设计及软件实现方法给
出了硬件原理图和软件流程图利用芯片的强大的数据处理能力和
丰富的片内外设及高速的实时控制能力用单片系统结构实现了交流采样频率
测量移相触发和励磁控制算法等功能 TMS320F2812 芯片的引入大大简化了
励磁控制器的硬件结构提高了励磁控制器的抗干扰能力和可靠性
实验室试验结果表明基于 TMS320F2812 的同步发电机励磁控制器具有硬件
结构简单可靠性高维护方便和性价比高等特点其主要性能指标达到或优于
国标具有很好的推广应用前景
关键词励磁控制器 DSP TMS320F2812 交流采样移相触发频率测量
ABSTRACT
Excitation controller, as a main part of excitation system in the synchronic generator,
affects the safe and steady operation of generators and power systems. With its
enlargement of scale, as the structure and run mode of it are plexing, the
power system requires that the excitation system has better operation performance, higher
reliability, better economical efficiency and flexibleness. According to the developing
direction of excitation controller both here and abroad, this paper researches and develops
DSP excitation controller of synchronic generator by TMS320F2812 as the control center.
Firstly, the paper introduces the state and trend of excitation controller in the
synchronic generator and analyses the problems existing in it. Secondly, this paper also
presents the history, feature and application range of DSP chip and chooses TMS320F2812
as the control center of excitation controller by means paring the performance
between TMS320F2812 and the other control chips. And then this paper describes the
design methods of the hardware and software used in the excitation controller based on
TMS320F2812, presents the schematic diagram of hardware and the flowchart of the
software, and with them, the fast AC sampling, frequency measurement, digital shift phase
trigger pulse and control rul