Power converter and heat pump system provided therewith

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12224678
APP PUB NO 20230246561A1
SERIAL NO

18126892

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A power converter includes a power conversion unit for a three-phase alternating current output from an alternating-current power source, and a current compensation unit that supplies a compensating current to the alternating-current power source. The current compensation unit includes a current compensation unit inverter including switching elements, a current compensation unit capacitor, a current compensation unit reactor, a compensation controller that obtains an output voltage command value, and a drive signal generator that generates a drive signal usable to drive the switching elements by a three-phase modulation method. The current compensation unit inverter supplies the compensating current to the alternating-current power source via the current compensation unit reactor. Td≤(34.00/fsw−0.145)(1.55−0.055*Pmax), where fsw represents a carrier frequency employed for generation of the drive signal, Pmax represents a maximum input power of the power conversion unit, and Td represents a dead time for the drive signal.

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Patent Owner(s)

  • DAIKIN INDUSTRIES, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Masahide Osaka, JP 19 187
Kawashima, Reiji Osaka, JP 35 191
Kono, Masaki Osaka, JP 55 318

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