Fault detection and diagnosis in voltage source inverters using principle component analysis
Author:
- 1 December 2017
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 0509-0515
Abstract
In this paper, the fault detection and diagnosis in a three-phase voltage source inverter (VSI) is investigated. The open-circuit of power switches is considered as the faulty conditions. The proposed algorithm in this paper is the principle component analysis (PCA) that determines the failed switch and the fault starting time based on the inverter output currents. In order to validate the performance of the proposed fault detection method, one of the most commonly used methods presented in the literature entitled “3D Current Trajectory” is also implemented and its results are compared to those of PCA. Under the circumstances where the open-circuit fault occurs at a specific time or the fault time interval is very small, the conventional methods cannot detect the faults. Using the software simulations in MATLAB, it is demonstrated that the proposed method can detect any faults under any circumstances and identify the origin of them.Keywords
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