Power conversion apparatus
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United States of America Patent
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May 10, 2016
Grant Date -
Dec 19, 2013
app pub date -
Aug 22, 2013
filing date -
Feb 23, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A power conversion apparatus includes an inverter circuit including a switching element, a system voltage measurement unit measuring a system voltage of a power system, a voltage drop detector detecting a voltage drop of the power system, a carrier wave generator generating a carrier wave, a carrier wave frequency modulator increasing a frequency of the carrier wave, when the voltage drop is detected, a signal wave generator generating a signal wave to control the inverter circuit, a gate signal generator comparing the carrier wave with the signal wave, and generating a gate signal, and a power conversion controller controlling the inverter circuit, based on the gate signal.
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