Power converter

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United States of America Patent

PATENT NO 9287815
APP PUB NO 20140232309A1
SERIAL NO

14348377

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a power converter, vibration and noise of a motor due to pulsation of a direct current link voltage are reduced. An inverter circuit is provided, which is configured to convert a direct current link voltage having a pulsating component to an alternating current to output the alternating current to a permanent magnet synchronous motor. A controller is provided, which is configured to control the inverter circuit by vector control and which, in a control state in which fundamental voltage vectors do not include a zero vector (voltage vector for which a motor terminal voltage is zero), performs such control that the phase of a resultant voltage vector of a d-axis voltage vector and a q-axis voltage vector of the permanent magnet synchronous motor varies depending on pulsation.

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Patent Owner(s)

  • DAIKIN INDUSTRIES, LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maeda, Toshiyuki Shiga, JP 135 1757
Zhou, Yueqiang Shiga, JP 3 20

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