Design of Power Harmonic Analyzer Based on LabVIEW and HHT

Abstract:

For shortcomings and deficiencies of FFT and Wavelet Transform, Hilbert Huang Transform is used in power harmonic analysis, EMD method is applied to decompose these signals from the timescale of its characteristics to realize adaptive signal of the band, And then the characteristics of frequency and amplitude of each disturbance signal are extracted on the basis of Hilbert transform. Furthermore, the paper designed a data processing platform based on the integrated software LabVIEW and Matlab with NI PXI-1042 as the carrier. The system can analyze and process the power harmonic data in real-time with the calculation of HHT, compared with the traditional analyzer, with simple operation, processing ability, graphics output etc. Experiments have proved the stability, fast calculation capability, and high precision of the system.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 2522-2526
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.2522
• Online since: February 2013
• Authors: Xiang Yi Wang, Wei Wang, Wei Min Chen
• Keywords: HHT, LabVIEW, MATLAB, Power Harmonic Analysis

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