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- W2354190054 abstract "Autoregression spectral estimation methods have high frequency resolution,but interharmonics' amplitude and phase can not be easily accurately calculated.The spectrum analysis methods based on the DPT can be used to gel high precision interharmonic parameters with the accurate identification of interharmunic frequency as the premise,Imt thej have low high frequenc]resolution,so an algorithm combined with the advantages of two methods to detect the interharmonics is proposed.Firstly,Burg algorithm based on the optimal window weighted correction is adopted to estimate all frequencies of the signal,and then the result of FFT under software synchronous sampling is used to calculate all components' parameters.The fundamental wave and harmonics have no spectrum leakage under synchronous sampling,so the FFT spectrum line only related to interharmonics can be used to calculate interharmonics' parameters.At this time,the problem that interharmonic spectral lines may have mutual interference can be overcome by solving equations with interharmonic parameters.At last,the spectrum line of fundamental wave and harmonic parameters whose frequencies are close to interharmonics will be corrected in order to get high accurate parameters of both harmonics and interharmonics.Experiments show that the proposed interharmonic detection method based on AR spectral estimation and spectral analysis can taken both resolution and accuracy into account." @default.
- W2354190054 created "2016-06-24" @default.
- W2354190054 creator A5067106717 @default.
- W2354190054 date "2014-01-01" @default.
- W2354190054 modified "2023-09-25" @default.
- W2354190054 title "An Interharmonic Detection Algorithm Based on AR Spectral Estimation and Spectrum Analysis" @default.
- W2354190054 hasPublicationYear "2014" @default.
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