Title:
CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/013614
Kind Code:
A1
Abstract:
A voltage control unit (13) generates a d-axis voltage command value and a q-axis voltage command value on the basis of an operation command signal and a three-phase current. When the state in which the absolute value of the resultant vector of the d-axis voltage command value and the q-axis voltage command value is not within a set predetermined range continues for a predetermined time or longer, a disconnection detection unit (14) determines that disconnection occurs between a power converter (11) and an alternating-current motor (4). A gate control unit (15) transmits a gate command for turning off a switching element provided in the power converter (11) to the power converter (11) when the disconnection detection unit (14) determines that the disconnection occurs between the power converter (11) and the alternating-current motor (4).
More Like This:
| JPS58100498 | [Title of the device] Electric motor group operation control device |
| JP2013051745 | POWER CONVERSION SYSTEM |
| JPH02131396 | INVERTER DEVICE |
Inventors:
KAKIZAKI TSUNEYASU (JP)
Application Number:
PCT/JP2012/068477
Publication Date:
January 23, 2014
Filing Date:
July 20, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
KAKIZAKI TSUNEYASU (JP)
KAKIZAKI TSUNEYASU (JP)
International Classes:
H02P5/74; B60L3/00; H02P5/00; H02P21/00; H02P23/07; H02P27/06; H02P29/00
Foreign References:
| JP2012029347A | 2012-02-09 | |||
| JP2011139559A | 2011-07-14 | |||
| JP2006203958A | 2006-08-03 | |||
| JP2005176571A | 2005-06-30 |
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
Mitsuru Kimura (JP)
Mitsuru Kimura (JP)
Download PDF:
Previous Patent: VIDEO DISPLAY DEVICE
Next Patent: PROCESS FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Next Patent: PROCESS FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET