Experimental Validation of a Buck Converter in Discontinuous Conduction Mode with Power Factor Correction

This paper proposes a buck converter with an LC input filter for power factor correction when connected to the grid by means of a non-controller rectifier. The output voltage is regulated to a constant reference by using a conventional controller over the voltage error. This converter may find poten...

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Bibliographic Details
Main Authors: Sosa, Jose M., Martinez-Rodriguez, Panfilo R., Limones-Pozos, Cesar A., Vazquez, Gerardo, Escobar, Gerardo, Gomez-Saavedra, Carlos A.
Format: Conference Proceeding
Language:English
Subjects:
Buck converters
Capacitors
Inductors
Power factor correction
Steady-state
Switches
Voltage control
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Summary:This paper proposes a buck converter with an LC input filter for power factor correction when connected to the grid by means of a non-controller rectifier. The output voltage is regulated to a constant reference by using a conventional controller over the voltage error. This converter may find potential applications, for instance, by supplying a constant voltage to LED based lighting systems and in energy storage applications. In this paper conditions for discontinuous conduction mode operation and theoretical current and voltage waveforms are provided. A voltage regulation controller is also presented along with experimental results which were performed on a low power experimental setup. The controller regulates the output voltage to a given constant reference and discontinuous conduction mode allows the input current envelope to follow the grid voltage waveform.
ISSN:2573-0770
DOI:10.1109/ROPEC.2018.8661383