Open Access

ARTICLE

Fault Diagnosis of Power Electronic Circuits Based on Adaptive Simulated Annealing Particle Swarm Optimization

by Deye Jiang¹, Yiguang Wang^2,*

1 School of Electronic Information, Guilin University of Electronic Technology, Beihai, 536000, China
2 School of Ocean Engineering, Guilin University of Electronic Technology, Beihai, 536000, China

* Corresponding Author: Yiguang Wang. Email:

Computers, Materials & Continua 2023, 76(1), 295-309. https://doi.org/10.32604/cmc.2023.039244

Received 17 January 2023; Accepted 14 April 2023; Issue published 08 June 2023

Abstract

In the field of energy conversion, the increasing attention on power electronic equipment is fault detection and diagnosis. A power electronic circuit is an essential part of a power electronic system. The state of its internal components affects the performance of the system. The stability and reliability of an energy system can be improved by studying the fault diagnosis of power electronic circuits. Therefore, an algorithm based on adaptive simulated annealing particle swarm optimization (ASAPSO) was used in the present study to optimize a backpropagation (BP) neural network employed for the online fault diagnosis of a power electronic circuit. We built a circuit simulation model in MATLAB to obtain its DC output voltage. Using Fourier analysis, we extracted fault features. These were normalized as training samples and input to an unoptimized BP neural network and BP neural networks optimized by particle swarm optimization (PSO) and the ASAPSO algorithm. The accuracy of fault diagnosis was compared for the three networks. The simulation results demonstrate that a BP neural network optimized with the ASAPSO algorithm has higher fault diagnosis accuracy, better reliability, and adaptability and can more effectively diagnose and locate faults in power electronic circuits.

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Keywords

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