POWER CONVERSION DEVICE AND COMPRESSOR DRIVING DEVICE

Title:

POWER CONVERSION DEVICE AND COMPRESSOR DRIVING DEVICE

Document Type and Number:

WIPO Patent Application WO/2016/042628

Kind Code:

A1

Abstract:

The present invention is provided with: an electric motor driving device 100 that drives an electric motor 5 using power supplied from an AC power supply 1, or a leak current detection unit 21 that detects a zero-phase current flowing from the electric motor 5 to ground E2; a leak current control unit 22 that generates, on the basis of the zero-phase current thus detected by means of the leak current detection unit 21, a control signal having periodicity synchronized with that of the AC power supply 1; and a reverse phase current generating unit 23 that generates and outputs a reverse phase current in a phase reverse to that of the zero-phase current, on the basis of the control signal outputted from the leak current control unit 22.

Inventors:

SHINOMOTO YOSUKE (JP)
ARISAWA KOICHI (JP)
YAMAKAWA TAKASHI (JP)
TAKAYAMA YUJI (JP)

Application Number:

PCT/JP2014/074592

Publication Date:

March 24, 2016

Filing Date:

September 17, 2014

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

H02P27/06; F04B39/00; F04C29/00

Foreign References:

JP2000152692A	2000-05-30
JP2002064949A	2002-02-28
JP2013187955A	2013-09-19
JPH09233837A	1997-09-05
JP2008234298A	2008-10-02

Other References: