Power conversion device, power conversion system, and power conversion method
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United States of America Patent
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Jun 13, 2023
Grant Date -
Aug 12, 2021
app pub date -
Apr 29, 2021
filing date -
Nov 1, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A power conversion device connected in parallel to a second power conversion device including power conversion circuitry that performs power conversion by changing a connection state between first multiple lines on a primary side and second multiple lines on a secondary side, baseline selection circuitry that selects one of the second multiple lines on the secondary side as a baseline and partial modulation control circuitry that controls the power conversion circuitry to maintain a state in which the baseline is connected to one of the first multiple lines on the primary side and to change a connection state between other second multiple lines on the secondary side and the first multiple lines on the primary side, wherein the baseline selection circuitry switches a line selected as the baseline based on a switching timing used by second baseline selection circuitry of the second power conversion device to select a second baseline.
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