1、 1 论文题目: 基于基于 DSPDSP 的交流采样系统的交流采样系统 摘 要 交流采样是电网进行微机保护的重要一步, 交流采样方法的优劣直接影响到微机保护 的效果。本系统应用 DSP 制作交流采样电路,使其实现高速、准确的交流采样,通过软 件控制实现模拟微机保护跳闸功能。 本文介绍了应用 DSP 实现对交流信号的采样硬件电路设计,论文总共分为四个部分。 (1)介绍交流采样的基本结构,设计思路,并分析目前交流采样的几种方式; (2)通过 对交流采样对象的分析,确定采样的参数大小并设计基于 F2812 的采样电路; (3)运用 CCS3.1 利用设计的程序对采样电路进行试验,得出电路的误差并进行
2、分析; (4)通过上 述设计,能够完成对交流信号的采集、处理并将所需数值显示出来。满足设计要求。 由于时间、水平有限,本系统没有实现与计算机的数据通信,将在日后工作与学习中 进一步完善。 关键词:交流采样,DSP,微机保护 Thesis topic: Professional: Undergraduate Students: (Signed )_ Instructor: (Signed )_ 2 ABSTRACT The exchange sampling is the electrical network carries on the microcomputer to protect imp
3、ortantly one step, the exchange sampling methods protects fit and unfit quality immediate influence the effect which to the microcomputer. This system applies the DSP manufacture exchange sampling circuit, causes it to realize high speed, the accurate exchange sampling, realizes the simulation micro
4、computer protective trip function through the software control. This article introduced realizes using DSP to exchanges the signal sampling hardware circuit design, the paper altogether divides into four parts. (1) introduced that the exchange sampling the basic structure, the design mentality, and analyzes the present exchange sampling several ways; (2) through to exchanges the sampling object analysis, the definite samplings parameter size an