POWER CONVERSION DEVICE AND MOTOR DRIVE DEVICE, FAN, AND COMPRESSOR EACH PROVIDED WITH SAME, AND AIR-CONDITIONING MACHINE, REFRIGERATOR, AND FREEZING MACHINE EACH PROVIDED WITH FAN AND/OR COMPRESSOR

WIPO Patent Application WO/2016/035216

A1

A power conversion device is provided with: an inverter 4a for driving a motor 5a by using a first carrier signal fc_a; an inverter 4b connected in parallel with the inverter 4a and driving a motor 5b by using a second carrier signal fc_b; respective phase lower-arm shunt resistors 441a, 442a, 443a for detecting first currents flowing through the inverter 4a; respective phase lower-arm shunt resistors 441b, 442b, 443b for detecting second currents flowing through the inverter 4b; and a control unit 7 for controlling the inverters 4a, 4b. When controlling the inverters 4a, 4b, a phase difference is set between the first carrier signal fc_a and the second carrier signal fc_b so that the detection periods of the first currents in the first carrier signal fc_a and the detection periods of the second currents in the second carrier signal fc_b are not overlapped with each other.

UEMURA KEISUKE (JP)
HATAKEYAMA KAZUNORI (JP)
SHINOMOTO YOSUKE (JP)
KASHIMA MITSUO (JP)
MATSUMOTO TAKASHI (JP)

PCT/JP2014/073582

March 10, 2016

September 05, 2014

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MITSUBISHI ELECTRIC CORP (JP)

H02P5/74; H02M7/5387

WO2003032478A1

2003-04-17

JP2013219907A	2013-10-24
JP2009118633A	2009-05-28
JP2001128457A	2001-05-11
JP2002199744A	2002-07-12
JP2010200541A	2010-09-09
JP2012231672A	2012-11-22

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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