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Patent Searching and Data


Title:
THYRISTOR STARTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/159346
Kind Code:
A1
Abstract:
A converter control unit (13) that controls the ignition phase of a converter (1) generates a voltage command value of an output voltage of the converter (1) by performing control calculation on a deviation so as to include at least an integral element for integrating a deviation of a DC current from a current command value. In a first mode where commutation of the inverter (2) is performed by intermittently setting the DC current to zero, the converter control unit (13) is configured to maintain the DC current at zero during a prescribed pause time period by narrowing a phase control angle simultaneously with a commutation command of the inverter (2). When the control calculation is resumed immediately after the pause, the converter control unit (13) uses a control amount calculated through the control calculation immediately before the pause time period, as a preset value of the integral element immediately after the pause time period.

Inventors:
KAWAGUCHI HIRONORI (JP)
OGINO HIROSHI (JP)
MATSUMOTO YASUAKI (JP)
ANDO AKINOBU (JP)
Application Number:
PCT/JP2018/005656
Publication Date:
August 22, 2019
Filing Date:
February 19, 2018
Export Citation:
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Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
H02P27/06
Domestic Patent References:
WO2014033849A12014-03-06
Foreign References:
JP2004282948A2004-10-07
JPH1028391A1998-01-27
JP2008172952A2008-07-24
Other References:
See also references of EP 3758217A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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