Direct-power-converter control device
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Oct 7, 2015
filing date -
Oct 15, 2014
priority date (Note) -
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Abstract
A control device includes a charge controller. The charge controller includes an amplitude determining unit, a charge command generating unit, and a charging operation controller. The amplitude determining unit determines an amplitude of a current to be input to a converter by performing at least proportional-integral control on a deviation between a voltage across the buffer capacitor and an average voltage command value that is a command value of an average of the voltage across the buffer capacitor. The charge command generating unit determines a charge command by multiplying by the amplitude a function determined according to a discharge duty, a rectifying duty, and a distribution factor of power. The charging operation controller controls a charging operation of the buffer capacitor on the basis of the charge command.
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