THYRISTOR STARTUP DEVICE - TOSHIBA MITSUBISHI ELEC IND

Title:

THYRISTOR STARTUP DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/235190

Kind Code:

A1

Abstract:

A thyristor startup device (100) is configured so as to accelerate a synchronous machine (20) from a stop state to a predetermined rotational speed by sequentially executing a first mode in which an inverter (2) is commutated by intermittently forcing the DC output current of a converter (1) to zero and a second mode in which the inverter (2) is commutated using the induced voltage of the synchronous machine (20). In the thyristor startup device (100), during a first period from the start of execution of the second mode until the induced voltage of the synchronous machine (20) reaches a first voltage value, the phase control angle of the inverter (2) is changed to increase in value as the rotational speed of the synchronous machine (20) becomes higher.

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Inventors:

KAWAGUCHI HIRONORI (JP)
ANDO AKINOBU (JP)
OGINO HIROSHI (JP)
MATSUMOTO YASUAKI (JP)

Application Number:

PCT/JP2017/022845

Publication Date:

December 27, 2018

Filing Date:

June 21, 2017

Export Citation:

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Assignee:

TOSHIBA MITSUBISHI ELEC IND (JP)

International Classes:

H02P27/06; H02P25/026

Domestic Patent References:

WO2014033849A1	2014-03-06
WO2014033849A1	2014-03-06

Foreign References:

JP2003061380A	2003-02-28
JPH05276763A	1993-10-22
JPS52120319A	1977-10-08
JPS56101390A	1981-08-13
US20120212982A1	2012-08-23

Other References: