华中科技大学学报（自然科学版）2025，Vol.53Issue(3)：85-92,8.DOI:10.13245/j.hust.250364
基于复三阶循环累计量谱的间谐波检测算法
Interharmonic detection algorithm based on complex third-order cyclic cumulant spectrum
摘要
Abstract
To improve the accuracy of harmonic and interharmonic detection in aviation ground power supply,a multi-channel parallel processing harmonic and interharmonic detection algorithm based on complex third-order cyclic cumulant spectrum was proposed.Firstly,it was proposed to estimate the Fourier coefficients of different frequency components in a signal using a complex third-order cyclic cumulant spectrum in the positive frequency space.Secondly,a method of spectral refinement was proposed to reduce spectral leakage and fence effects,achieving accurate estimation of Fourier coefficients.Further an algorithm for multi-channel parallel processing was proposed,which not only achieves estimation of broadband signals,but also greatly reduces the computational time of the algorithm.Finally,the practicality of the proposed algorithm for detecting harmonics and interharmonics in aviation ground power supply was verified through simulation and experimental analysis.关键词
间谐波检测/复三阶循环累积量谱/航空地面电源/傅里叶变换/希尔伯特变换Key words
interharmonic detection/complex third-order cyclic cumulant spectrum/aviation ground power supply/Fourier transform/Hilbert transform分类
动力与电气工程引用本文复制引用
代博文,李勋章,樊伟杰,胡新生..基于复三阶循环累计量谱的间谐波检测算法[J].华中科技大学学报（自然科学版）,2025,53(3):85-92,8.基金项目
国家自然科学基金资助项目(52101392) （52101392）
山东省自然科学基金资助项目(ZR2021QD060). （ZR2021QD060）
