Supraharmonics Detection Algorithm Based on Bimodal Spectral Line Interpolation Algorithm

The wide application of high-frequency power electronic equipment leads to the increasingly serious problem of supraharmonics in the power grid. However, the existing hamionic detection methods have some problems such as slow detection speed and more data processing when used to detect supraharmonics in a wider frequency range. In this paper, based on a comprehensive comparison of existing harmonic detection algorithms, a detection algorithm for supraharmonics, bimodal spectral line interpolation algorithm, is proposed. The algorithm can effectively suppress the spectrum leakage, and the detection accuracy is good, which provides a new idea for the accurate detection of supraharmonics.