Fault Detection System for High Voltage Frequency Converter Based on the Fault Tree Analysis Method

Abstract

High voltage frequency converter plays a necessary role in saving energy and reducing consumption of modern industrial enterprises. When the high voltage frequency converter breaks down, it needs to be located fault components as soon as possible and taken effective measures. Because the high voltage frequency converter is various and complicated, it is hard to complete the task of an intelligent fault detection system by using the traditional Fourier transform. The fault detection system for unit series multi-level voltage source type high voltage frequency converter based on the fault tree analysis method is put forward in this paper. The fault tree for a frequency converter is constructed based on the analysis of frequency converter's configuration, the function of each part and the failure mode.