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Simulation and Modeling of a AC-DC Converter Controlled by Pulse Width | ||
| JOURNAL OF THI-QAR SCIENCE | ||
| Article 1, Volume 3, Issue 2, 2013, Pages 112-122 | ||
| Author | ||
| Hasanain A. Hanoon | ||
| Abstract | ||
| Abstract: This work presents the design, analysis, and simulation of AC-DC converter topology incorporating a voltage source converter (VSC) and a direct converter, connected with medium frequency transformer isolation. A control method is studied by which it is possible to reduce the transformer core losses by only magnetizing the transformer when a Pulse Width Modulation (PWM) pulse should be applied on the AC side of the system. By alternately commutating the two converters it is possible to achieve soft switching conditions for all of the semiconductor elements. Furthermore, it is shown that resonant commutation of the voltage source converter is possible by utilizing the cycloconverter for short circuiting the transformer terminals. | ||
| Keywords | ||
| DC Converter; medium; frequency transformer; Soft Switching; PWM control | ||
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