POWER CONVERSION DEVICE AND VEHICLE DRIVE SYSTEM TO WHICH SAME IS APPLIED

WIPO Patent Application WO/2016/185924

A1

A control unit (4) is capable of: generating a first switching signal based on a voltage command value and a first carrier wave (frequency Fc1), and a second switching signal based on the voltage command value and a second carrier wave (frequency Fc2≠Fc1); and calculating and estimating a resistance value (Rs) and a dead time error (∆Td) of an electric motor (7) in a short time using a same common means, said dead time error being a difference between a dead time effective value and dead time setting value, by being provided with a characteristic calculation unit (10) that estimates and calculates the resistance value and/or the dead time error on the basis of first operation characteristics of a power conversion unit (1), said first operation characteristics being obtained when a switching element is driven by means of the first switching signal, and second operation characteristics of the power conversion unit (1), said second operation characteristics being obtained when the switching element is driven by means of the second switching signal.

JP2020529819	Integrated power conversion and grid cooperation system
JP2006050707	MOTOR DRIVE UNIT
WO/2009/157276	ELECTRIC POWER CONVERSION DEVICE

KATO SHO (JP)
YAMASHITA YOSHINORI (JP)

PCT/JP2016/063717

November 24, 2016

May 09, 2016

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MITSUBISHI ELECTRIC CORP (JP)

H02M7/48; H02P27/08

JP2011036031A	2011-02-17
JP2005151790A	2005-06-09
JP2006191775A	2006-07-20

MURAKAMI Keigo et al. (JP)
村上 啓吾 (JP)

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