Application of Neural Network in Power System Inter-harmonic Detection

Inter-harmonic is a special power system harmonics, which appears frequently grid. This article outlines the sources and hazards of inter-harmonic, and analysis several inter-harmonic detection methods. A new Inter-harmonic detection method which combines with double interpolation FFT and artificial neural networks (ANN) is applied in the article, the feasibility of the harmonic analysis method is researched. The simulation example shows that the method can get high-precision amplitude and phase, so it is effective.