Harmonic analysis based on time domain mutual-multiplication window
Harmonic analysis based on time domain mutual-multiplication window作者机构:School of Electrical EngineeringWuhan UniversityWuhan 430072China School of Computer ScienceSouth-Central University for NationalitiesWuhan 430072China
出 版 物:《Journal of Modern Power Systems and Clean Energy》 (现代电力系统与清洁能源学报(英文))
年 卷 期:2016年第4卷第1期
页 面:47-53页
核心收录:
学科分类:080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学]
主 题:Mutual-multiplication window Fast Fourier Transform Harmonic Analysis Main-lobe Side-lobe
摘 要:The signal spectral leakage and fence effect are prone to take place during the power harmonic analysis by fast fourier transform(FFT) under asynchronous *** inhibiting ability of classical window functions is restricted by side-lobe behaviors. A new type window function called time domain mutual-multiplication window, is obtained by multiplication operation of several window functions. A novel approach of harmonic analysis is developed through analyzing performances of main-lobe and side-lobe of the new window. Simulation results show that the time domain mutual-multiplication window can significantly suppress frequency spectral leakage and improve the accuracy of harmonic parameter estimation.