基于傅氏算法的暂态电量采集技术

利用AVR单片机系列中的ATmega64L芯片，采用改进的半波傅立叶算法，实现对电力系统故障时暂态电信号的交流采样和参数计算，可以有效滤除故障信号当中的非周期分量，比较精确的算出基波分量和奇次谐波分量，从而进行保护动作的判断。构成了快速和准确的微机保护，具有实际工程应用价值。

The Technique of Transient Signal Sampling Based on Fourier Algorithm

Use ATmega64L CMOS chip of AVR series single-chip microprocessors,adopt half-wave Fourier algorithm,realize AC sampling and parameters calculation of the transient signal in power system malfunction,the exponential decay DC component in the signal can be filtered availably,calculate fundamental wave component and odd wave component more accurately with the algorithm,judge protect operation consequently.Structure fast and exact computer protection,have value for actual project.