Diseño y construcción de un convertidor de potencia AC/DC-DC/DC para la correción de factor de potencia

Abstract

This work comprehends the design and construction of an AC/DC-DC/DC Power Converter that allows the THD (Total Harmonic Distortion) reduction of the current waveform given from the electric mains, the synchronization of the voltage and current waveforms such that the PF (Power Factor) delivered to the mains is corrected to a value greater than 80%. To achieve this it is necessary to have Power Electronics knowledge, in which different class converters, topologies, electronic devices analysis and functioning characteristics are presented in order to get a holistic comprehension of the problem and the development of a solution on each of its stages. The proposed device in this work is a power converter of size 14.2x16.3x17 cm, with a Boost topology that uses isolation elements for common and differential noise in the converter, also a PFC-ICE3PCS01 (Power Factor Correction), Driver-1EDI60N12AF and the Mosfet-IPZ65R045C7, very flexible and with high operative quality. The combination of these and other elements, comprehend a 1.2kW nominal power (to a resistive load) converter, with a time gap of 204μs and THD_i of 3.66%, achieving a 99.6% of PF and 95% on efficiency (η) for a 122V_rms voltage input.