We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Research on Establishment and Application of Digital Twin for a Phase-Shift Full-Bridge Current Doubling Rectifier Converter.
- Authors
Liu, Guihua; Wang, Xinyang; Wang, Mingyi; Wang, Wei
- Abstract
In order to improve the safety and reliability of airborne power supply and distribution system, a digital twin of a phase-shift full-bridge current doubling rectifier converter based on gallium nitride metal-oxide-semiconductor field-effect transistor (GaN MOSFET) is built. The digital twin can be regarded as virtual symmetry of the real converter. The particle swarm optimization (PSO) algorithm is applied to compare the voltage and current waveforms of the real converter with relative waveforms of its digital model established in simulation software, and the interior parameters of the model are constantly updated until the waveforms of the digital twin coincide with that of the converter. Applications of this digital twin are discussed through experimental verification, and the results show that the digital twin can deduce the parameter value of key components of the converter in the case of soft faults. In the case of hard faults, a back propagating artificial neural net (BP ANN) is trained by data collected from the digital twin, and the BP ANN is able to identify different running states of the converter. The outcomes of this paper present a non-intrusive and high real-time method of condition monitoring and fault diagnosis, which is beneficial to improve the reliability of airborne HVDC power supply system.
- Subjects
DIGITAL twins; ELECTRIC current rectifiers; PARTICLE swarm optimization; GALLIUM nitride; FIELD-effect transistors; FAULT diagnosis; ANALOG-to-digital converters
- Publication
Symmetry (20738994), 2023, Vol 15, Issue 2, p292
- ISSN
2073-8994
- Publication type
Article
- DOI
10.3390/sym15020292