Power converter with a controlled current source and connected in single-phase mode
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United States of America Patent
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Apr 9, 2013
Grant Date -
May 31, 2012
app pub date -
Oct 20, 2011
filing date -
Nov 25, 2010
priority date (Note) -
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Abstract
A control method implemented in a power converter, such as a variable speed drive, is disclosed. This control method is designed to make the power converter operate when the latter is connected to the network in single-phase mode. The power converter includes a controlled current source connected in series to its DC power supply bus. This controlled current source includes an electronic converter provided with two controlled switching arms. The switching arms are controlled by alternating a modulation phase with a saturation phase, the saturation phase being applied for a determined duration β in order to make the power converter operate in discontinuous mode.
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