POWER CONVERSION DEVICE AND AIR-CONDITIONING DEVICE USING SAME

Title:

POWER CONVERSION DEVICE AND AIR-CONDITIONING DEVICE USING SAME

Document Type and Number:

WIPO Patent Application WO/2017/056298

Kind Code:

A1

Abstract:

The power conversion device has: a transformer circuit for transforming a rectified voltage rectified by a rectifier and for outputting the resulting voltage; and a converter control means for controlling the operation of a switching component of the transformer circuit. The converter control means calculates a current command value on the basis of a line voltage or a phase voltage, calculates a current deviation between the current command value and a reactor current, and calculates a switching command value from the current deviation calculated by a current subtractor. In this case, the converter control means has multiple integrators which are respectively provided for different phase angles of a power source voltage, each of said integrators generating a control amount in accordance with an integrated current deviation at each of different phase angles, whereby an integrator which corresponds to a source phase angle is caused to store the current deviation, an integrator which corresponds to a phase angle advanced by a preset delay phase from the power source phase angle is caused to output the control amount therefrom, and a switching signal to be output to the switching component is generated using the control amount and the switching command value.

Inventors:

YUASA KENTA (JP)
ISHIKAWA SHUTA (JP)
TSUMURA AKIHIRO (JP)
KUSUBE SHINSAKU (JP)

Application Number:

PCT/JP2015/077978

Publication Date:

April 06, 2017

Filing Date:

October 01, 2015

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

H02M3/155; H02M7/06

Domestic Patent References:

WO2010061653A1

2010-06-03

Foreign References:

JPH0974763A

1997-03-18

Other References: