【作者】 胡剑琛；

【导师】 刘建飞；

【作者基本信息】 华北电力大学（北京） ， 电力系统及其自动化， 2005， 硕士

【摘要】 针对目前微机继电保护数据预处理中存在的一些问题,本文首先介绍了国内外这方面的研究现状和发展动态,分析了各种滤波算法的特性,然后讨论不同保护对滤波算法的要求和数据预处理对硬件的要求。最后,根据微机保护通用硬件平台的需要,提出了基于 FPGA 的硬件系统来进行数据预处理的设计构想。 论文完成了基本硬件电路设计和滤波算法设计。硬件设计方面,利用 FPGA 在实时数据处理方面的特点,设计了微机保护的数据采集系统,实现多路数据的同步采样和快速处理。算法设计方面,采用并行计算和模块化设计思想,初步实现了全周傅氏滤波算法和卡尔曼滤波算法,并将其应用于微机保护通用硬件平台。更多还原

【Abstract】 There are some problems in data preprocessing for digital relays now. This paper introduces the research actuality and development of data preprocessing for digital relays home and abroad, and analyzes the characteristics of various filter algorithms. The paper discusses the requirements of different protection relays for filtering algorithm and preprocessing for hardware. According to need of general hardware platform in protection relays, the paper puts forward a new assume about data preprocessing, which uses FPGA as hardware system. This paper finishes basic hardware circuit and filtering algorithm design. Based on FPGA’s advantage in real-time signal processing, the data acquisition system of digital relays is designed. The system implements multi-channel synchronous sampling and immediate processing. Through the concepts of parallel calculation and modularization, the filtering algorithms of full-cycle Fourier and Kalman are realized elementarily, and are used in general hardware platform of protection relays.更多还原