Power conversion device including an AC/DC converter and a DC/DC converter
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United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
Sep 1, 2015
filing date -
Nov 11, 2014
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Abstract
A main circuit of a power conversion device includes: an AC/DC converter for performing power factor correction control for a single-phase AC power supply; and a DC/DC converter connected to the AC/DC converter via a DC capacitor. In order to reduce ripple voltage and ripple current for the DC capacitor, a control circuit superimposes, onto a DC current command, an AC current command having the minimum value at the zero cross phase of the single-phase AC power supply and having the maximum value at the peak phase thereof, to generate an output current command for the DC/DC converter, and performs output control for the DC/DC converter, using the output current command.
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