POWER CONVERSION APPARATUS

Title:

POWER CONVERSION APPARATUS

Document Type and Number:

WIPO Patent Application WO/2019/187721

Kind Code:

A1

Abstract:

In order to suppress vibration in a motor (5), the load torque of which periodically fluctuates, control of periodically changing output torque of the motor (5) is performed. In the control, at least one of first control and second control is performed for increasing vibration suppressing components by a direct-type power conversion apparatus. The first control includes generation of output torque having a waveform including a fundamental frequency component of the load torque that has a frequency corresponding to a fluctuation period of the load torque as a fundamental frequency and at least one of a quadruple component and a sextuple component of a power source frequency of an AC power source (6). The second control includes generation of output torque having a waveform including at least one of a double component and a triple component of the fundamental frequency of the load torque and a double component of the power source frequency of the AC power source (6).

Inventors:

HAYASHI NOBUO (JP)
OGAWA TAKUROU (JP)
UEKI DAISUKE (JP)
SEKIMOTO MORIMITSU (JP)

Application Number:

PCT/JP2019/005056

Publication Date:

October 03, 2019

Filing Date:

February 13, 2019

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

H02M7/48; H02P23/04; H02P27/08

Foreign References:

JP2012165631A	2012-08-30
JP2010098854A	2010-04-30
JP2015073372A	2015-04-16
JP4192979B2	2008-12-10

Other References: