Fault detection in compressor using FFT algorithm

Abstract

This paper proposes a study of compressor current signal analysis using Fast Fourier Transform (FFT) algorithm for fault detection of balance weights in the three-phase compressor. The experimentations are implemented in a 5-Hp, 3-phase, 200-Volt rotary compressor with incorrectness of internal balance weights to the specification. The experimental results show the variation of the fault indication signal while the compressor is operated under the incorrect balance weight conditions. Finally the paper shows the relationship between mass of the balance weights, center of mass of internal part of compressor compare with the amplitude of compressor current in frequency domain and simulation result confirm the effectiveness of the purpose methodology.