CONTROL METHODS FOR POWER CONVERTERS
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United States of America Patent
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Issued Date -
Nov 27, 2014
app pub date -
May 21, 2014
filing date -
May 21, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of operating a power converter arrangement, the power converter arrangement includes a dc link and a dc load/source, an active rectifier/inverter having dc terminals connected to the dc link and is adapted to provide a variable dc link voltage between a maximum and a minimum limits, an interleaved buck converter having a plurality of converter circuits connected between the dc link and the dc load/source, wherein each converter circuit includes a first switch, a second switch, and a reactor, the method including determining one or more null values of dc link voltage with reference to the voltage across the dc load/source, and if a null value of dc link voltage is between the maximum and the minimum limits, controlling the active rectifier/inverter to provide a dc link voltage that is substantially the same as the null value of dc link voltage.
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