Title:
POWER CONVERSION DEVICE FOR ELECTRIC LOCOMOTIVE
Document Type and Number:
WIPO Patent Application WO/2015/060000
Kind Code:
A1
Abstract:
An isolation transformer in the power conversion device of an embodiment used for an electric locomotive receives the supply of a high-voltage AC power from an AC feeder and converts the high voltage to a low voltage, thereby outputting a low voltage AC power. An AC/DC converter receives the low voltage AC power and converts AC to DC, thereby outputting the DC to an inverter. Meanwhile, a PWM control unit outputs a PWM control signal to the inverter, said PWM control signal having a predetermined pattern for removing a specific harmonic component from the output of the inverter or attenuating the specific harmonic component to a predetermined level or less. A voltage control unit controls the output DC voltage of the AC/DC converter. As a result, the inverter receives the output signal of the AC/DC converter, converts DC to AC under the control of the voltage control unit, and supplies the AC to a load, so that the power conversion device for the electric locomotive, including an APU circuit, can be reduced in size.
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Inventors:
TODA SHINICHI (JP)
YASUOKA IKUO (JP)
SOUMA SABUROU (JP)
YASUOKA IKUO (JP)
SOUMA SABUROU (JP)
Application Number:
PCT/JP2014/072230
Publication Date:
April 30, 2015
Filing Date:
August 26, 2014
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
B60L1/00; B60L3/00; H02M7/12; H02M7/48
Domestic Patent References:
| WO2011070609A1 | 2011-06-16 |
Foreign References:
| JP2007074810A | 2007-03-22 | |||
| JP2006025591A | 2006-01-26 | |||
| JP2010200537A | 2010-09-09 | |||
| JPH11299290A | 1999-10-29 | |||
| JP2005102455A | 2005-04-14 | |||
| JPH02164201A | 1990-06-25 |
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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