Title:
THREE-PHASE AC MOTOR DRIVE DEVICE, RAIL VEHICLE EQUIPPED WITH SAME, AND THREE-PHASE AC MOTOR DRIVE METHOD
Document Type and Number:
WIPO Patent Application WO/2020/250561
Kind Code:
A1
Abstract:
This three-phase AC motor drive device is provided with: a load; an inverter device 1 for driving the load; an MCOK_A_4 connected between the inverter device 1 and the load and electrically connecting or disconnecting the inverter device 1 to or from the load; a voltage detector 21a having terminals respectively connected to the circuits of at least two phases to detect the voltages between the three phases; and a current detector 11 for detecting the currents of the three phases. In the connection from the inverter device 1 to the load, the inverter device 1, the MCOK_A_4, the voltage detector 21a, the current detector 11, and the load are aligned in this order.
Inventors:
SHINOMIYA TAKESHI (JP)
KUNIHIRO NAOKI (JP)
OGAWA KAZUTOSHI (JP)
ISHIKAWA KATSUMI (JP)
OTSUKA KUNIAKI (JP)
SHIRATA HIROYUKI (JP)
KANAZAWA TOMOMI (JP)
TAKAGI TAKEO (JP)
TERAKADO SHUICHI (JP)
NAKATA KIYOSHI (JP)
KUNIHIRO NAOKI (JP)
OGAWA KAZUTOSHI (JP)
ISHIKAWA KATSUMI (JP)
OTSUKA KUNIAKI (JP)
SHIRATA HIROYUKI (JP)
KANAZAWA TOMOMI (JP)
TAKAGI TAKEO (JP)
TERAKADO SHUICHI (JP)
NAKATA KIYOSHI (JP)
Application Number:
PCT/JP2020/016158
Publication Date:
December 17, 2020
Filing Date:
April 10, 2020
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02P25/16; B60L3/00; H02P27/06
Foreign References:
| JP2016178735A | 2016-10-06 | |||
| JP2007318969A | 2007-12-06 | |||
| JP2013192300A | 2013-09-26 | |||
| JP2011078254A | 2011-04-14 | |||
| JP2013192300A | 2013-09-26 |
Other References:
See also references of EP 3985863A4
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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