论文：《傅氏算法在电力系统继电保护中的应用》 关键词：傅氏算法；电力系统；继电保护 [gap=755]Key words：Fourier algorithm；power system ；relay protection
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As for computer relaying algorithms, considering characteristics of capacitors, Full-wave Fourier algorithm is adopted.
在微机保护算法的处理上，考虑电容器保护的特点，采用全周傅氏算法。
参考来源 - 基于DSP的并联电容器保护研究与实现Also analysis the frequency respond and filter characteristic of Fourier arithmetic based on the uncertainty of the sample result of sine signal. And meanwhile analysis the influence of the fault on the protection relay and Fourier arithmetic.
同时,根据正弦信号采样结果的不确定性现象,分析了离散形式的傅氏算法的幅值频率响应以及其滤波特性,并由此分析了直流系统发生换相失败故障以及系统恢复过程中的暂态过程对交流侧系统的继电保护以及傅氏算法的影响。
参考来源 - HVDC系统换相失败故障对交流侧保护的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
重点分析了傅氏算法及其改进算法。
The Fourier algorithm and its improved algorithm are emphasized.
其次，分析了由于频率偏移影响傅氏算法精度并提出其改进措施。
Second, this thesis analyses algorithm precision in case of frequency fluctuation and presents improving measures.
并采用滤除衰减直流分量的傅氏算法，提高了数据精度、简化了硬件电路。
The decaying DC component is filtered in the Fourier algorithm, which improves data precision and simplifies hardware circuits.
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