摘要
传统的电网谐波分析方法存在很大的误差,而加窗插值算法能够很好的克服传统检测方法存在的缺点,提高电网谐波的加测精度。由于Blackman-Harris窗函数能够有效地抑制频谱分析长范围的泄露,本文采用三次样条插值修正的原理,推导了基于Blackman-Harris窗函数的三系样条插值修正公式,并利用MATLAB软件对该算法进行仿真。
the traditional method of harmonic analysis of power grid has a large error, and the windowed interpolation algorithm can overcome the shortcomings of traditional detection methods, and improve the accuracy of harmonic measurement. Because the Blackman-Harris window function can effectively suppress the leakage spectrum analysis of long range used in this paper, three spline interpolation correction principle, the correction formula of three kind of Blackman-Harris window function interpolation has been deduced, and the simulation of the algorithm by using MATLAB software.
出处
《电子测试》
2017年第3X期53-54,共2页
Electronic Test
