Title:
MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JP3783695
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the torque control performance of a synchronous motor at its driving with a rectangular wave voltage.
SOLUTION: This motor controller carries out the coordinate conversion of currents iu, iv, which flow in a three-phase synchronous motor 8 into dq-axis currents id and iq of a dq-axis coordinate system which rotates in synchronization with the rotation of the motor, calculates a phase δ of the rectangular wave voltage based on d-axis current deviation between a d-axis current command value iq* and a q-axis current iq, and generates a three-phase rectangular wave voltage from a DC power source in accordance with the phase δ, and applies it to the three-phase synchronous motor 8 to drive it.
Inventors:
Kuntaro Yoshimoto
Application Number:
JP2003078181A
Publication Date:
June 07, 2006
Filing Date:
March 20, 2003
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
H02P27/06; H02P21/00; H02P21/18; H02P21/22; H02P21/24; H02P25/02; (IPC1-7): H02P7/63
Domestic Patent References:
| JP2002291297A | ||||
| JP2000050689A | ||||
| JP58003586A |
Attorney, Agent or Firm:
Fuyuki Nagai
Previous Patent: MULTICARRIER RECEIVING SYSTEM AND SYNCHRONIZING CIRCUIT FOR RECEIVER
Next Patent: DATA STORAGE METHOD FOR FERROELECTRIC STORAGE DEVICE
Next Patent: DATA STORAGE METHOD FOR FERROELECTRIC STORAGE DEVICE