Title:
回転磁界機械のための欠相検出
Document Type and Number:
Japanese Patent JP4209900
Kind Code:
B2
Abstract:
A method for detecting a loss of a phase in a multiphase rotating field machine, the method comprising providing a first electrical current into the machine windings to cause the current vector to assume a first current vector position, sensing a first current in at least one selected phase winding of the machine, comparing the sensed first current in the at least one selected phase winding with a first calculated current for the selected phase winding, and detecting that a first phase fault has occurred if the first calculated and sensed first currents differ by more than a predetermined value.
More Like This:
| JP4311043 | Motor control device |
| JPH04355322 | DISCONNECTION DETECTION DEVICE OF ROTARY ENCODER |
| JP2009077541 | PLANAR MOTOR |
Inventors:
Eddy in in ho
Application Number:
JP2006044979A
Publication Date:
January 14, 2009
Filing Date:
February 22, 2006
Export Citation:
Assignee:
INTERNATIONAL RECTIFIER CORPORATION
International Classes:
H02P29/00; H02P1/04; H02P6/08; H02P6/16; H02P27/06
Domestic Patent References:
| JP11341897A | ||||
| JP2003348898A |
Foreign References:
| US4710692 |
Attorney, Agent or Firm:
Meisei International Patent Office