Open-Circuit Fault Analysis and Recognition in Three-Level Inverters Based on Recurrence Plot and Convolution Neural Network

Power electronics is vital to modern infrastructure, but it is susceptible to open-circuit faults that can cause serious damage. Three-level inverters are commonly used in such equipment, but their high sensitivity and probability of failure make them particularly challenging to diagnose. In this gr...

Full description

Saved in:
Bibliographic Details
Published in:International transactions on electrical energy systems 2023, Vol.2023, p.1-17
Main Authors: Yan, Jianjun, Huang, Yanxing, Yuan, Shuai, Lu, Yufan, Yu, Zeyu
Format: Article
Language:English
Subjects:
Algorithms
Artificial neural networks
Circuit reliability
Classification
Damage detection
Electronics
Fault detection
Fault diagnosis
Fault location
Faults
Fourier transforms
Inverters
Methods
Neural networks
Nonlinear dynamics
Signal classification
Signal processing
Spatial data
Support vector machines
Wavelet transforms
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Power electronics is vital to modern infrastructure, but it is susceptible to open-circuit faults that can cause serious damage. Three-level inverters are commonly used in such equipment, but their high sensitivity and probability of failure make them particularly challenging to diagnose. In this groundbreaking study, we present a new method for accurately detecting and locating open-circuit faults in three-level, neutral-clamped inverters. Using advanced simulation tools and nonlinear dynamic methods, we develop a new diagnostic model that outperforms existing fault classification algorithms. By converting the current signal into an unthreshold recurrence plot (URP) and mapping its nonlinear features to a two-dimensional plane, it is possible to extract key spatial information and train a residual neural network model for fault diagnosis. The method represents a major advance in power electronics and has the potential to save equipment from costly damage. By accurately detecting and locating open-circuit faults in three-level inverters, the reliability and safety of power electronics can be guaranteed for years to come.
ISSN:2050-7038
2050-7038
DOI:10.1155/2023/4755960