Title:
永久磁石回転電機及びその運転方法
Document Type and Number:
Japanese Patent JP5812476
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a permanent magnet rotary electric machine that can reduce induction electromotive force in a high-speed mode and have high torque characteristics in a low-speed mode.SOLUTION: There is provided the permanent magnet rotary electric machine that has: a magnetic torque-principal eight-pole PM mode in which armature winding 23 has eight poles and variable magnetic force magnets are magnetized in the same direction with a magnetic field generated by supplying a large magnetization current only for a predetermined short time; a four-pole IPM mode in which the armature winding has four poles and four variable magnetic force magnets are magnetized in opposite directions from adjacent magnets with a magnetic field generated by supplying the magnetization current for the predetermined short time for operation with both magnet torque and reluctance torque; and a four-pole RM mode in which the armature winding has four poles and the four variable magnetic force magnets are demagnetized with a magnetic field generated by supplying the magnetization current for the predetermined short time for operation only with reluctance torque, variable-speed operation being carried out at a start and during transition of a speed area by changing the mode among those eight-pole PM mode, four-pole IPM mode, and four-pole RM mode.
Inventors:
Kazuto Sakai
Naobu Hashimoto
Kuramochi Akatsuki
Naobu Hashimoto
Kuramochi Akatsuki
Application Number:
JP2011169338A
Publication Date:
November 11, 2015
Filing Date:
August 02, 2011
Export Citation:
Assignee:
Toyo University
International Classes:
H02K21/14; H02K19/10; H02K19/12; H02P6/06
Domestic Patent References:
| JP2005539176A | ||||
| JP2007124755A | ||||
| JP2009201300A | ||||
| JP2008289300A | ||||
| JP4735772B1 | ||||
| JP2003134870A | ||||
| JP2011512776A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Shunichi Takahashi