Based on an engineering standpoint that a laser system is simply considered as an energy conversion system, a simulation study of a switched-mode power converter combined with a practical approval of a CO2 laser system is presented. This work provides a complete model of a switched-mode power supply for a CO2 Laser (Continuous mode), studies the effect of load variations and implements the results on a CO2 Laser tube. The major parts of a switched mode power supply (SMPS) which include: first rectifier, filter, switching converter, isolation transformer, second rectifier and output filter are presented. A PWM scheme for converter control has been designed and evaluated. The design and performance of a push-pull type SMPS used in high power applications is provided. The bipolar power transistor represents the main switching device with additional simple protection networks used to ensure safe operation. Switching frequency is limited to 40 kHz due to limitations of transformer core. A case study which consists of a switched mode prototype CO2 laser power supply with output power of 3kVA and output voltage of 30kV is presented. The system is simulated using MATLAB and Electronic Work Bench (EWB) software. The Authors were keen to provide an energy conversion system with the highest possible energy efficiency.
1st Mosharaka International Conference on Electrical Engineering and Applications (MIC-Electrical 2014)
Congress
2014 Global Congress on Electrical Engineering and Applications (GC-Electrical 2014), 4-6 April 2014, Athens, Greece
Pages
19-24
Topics
Modeling and Simulation of Power Electronic Circuits Modeling and Simulation of Power Systems
ISSN
2227-331X
DOI
BibTeX
@inproceedings{908Electrical2014,
title={Power electronics system for energy conversion using CO2 LASER},
author={Muthanna Al-Khishali, and Mohammed Al-Timemi},
booktitle={2014 Global Congress on Electrical Engineering and Applications (GC-Electrical 2014)},
year={2014},
pages={19-24},
doi={}},
organization={Mosharaka for Research and Studies}
}
