Title:
回転電動機
Document Type and Number:
Japanese Patent JP6939436
Kind Code:
B2
Abstract:
A rotating electric machine has a drive control part and a motor having a stator and a rotor. The drive control part has an external disturbance voltage instruction generation part, a switching signal generation part, first and second drive circuits, a current acquisition part detecting an external disturbance current flowing in three phase winding in each of a first coil and a second coil of the stator, and a phase angle estimation part detecting a phase angle of the rotor of the motor based on the detected external disturbance current. The drive control part adjusts turn-on/turn-off timings of switching signals so as to reduce a timing difference between corresponding line external disturbance voltages in the three phase windings more than the time difference without performing the timing adjustment while maintaining a duty ratio of these line external disturbance voltages to that when the timing adjustment is not performed.
Inventors:
Tomoya Takahashi
Application Number:
JP2017214448A
Publication Date:
September 22, 2021
Filing Date:
November 07, 2017
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02P6/185; H02P25/22
Domestic Patent References:
| JP2012165608A | ||||
| JP2013165608A | ||||
| JP2003033075A | ||||
| JP2017118603A |
Foreign References:
| WO2016189694A1 | ||||
| WO2016117067A1 | ||||
| CN105680756A |
Attorney, Agent or Firm:
Meisei International Patent Office