摘要
针对电能质量的分析，设计了基于DSP和GPLD的电能质量检测装置，完成对电网信号数据的实时采集和处理。文中介绍了系统的总体结构以及数据处理的方法。由于非同步采样造成频谱泄漏和栅栏效应的误差，采用同步采样的实现方法。为提高计算的准确性，采用基于加窗插值的FFT算法分析电力系统谐波，并对算法的实现进行了详细的描述。
In this paper, a system based on DSP and CPLD is developed in order to analyze the power quality. The overall design of this system and the means of data processing are introduced here. Due to the error of nonsynchronous sampling, the method of synchronous sampling is applied. In order to improve accuracy of calculation, FFT algorithm based on window function and interpolation is used to analyze harmonic of the power systems. Finally, the realization of the algorithm is described in detail.
出处
《山东电力高等专科学校学报》
2006年第5期48-50,57,共4页
Journal of Shandong Electric Power College
关键词
同步采样
FFT
加窗插值算法
synchronous sampling
FFT algorithm
window function
