Title:
CONTROL ARRANGEMENT OF PERMANENT MAGNET TYPE SYNCHRONOUS MOTOR
Document Type and Number:
Japanese Patent JP2019201530
Kind Code:
A
Abstract:
To detect abnormality of permanent magnet type synchronous motor quickly.SOLUTION: A control arrangement 100 of a permanent magnet type synchronous motor 1 comprises a power converter 3, a current detector 4 for detecting the input current of the permanent magnet type synchronous motor 1, a current component converter 7 outputting a d-axis current in the direction parallel with the permanent magnet and a q-axis current in the direction perpendicular to the permanent magnet, a voltage detector 8 detecting the input voltage, a voltage component converter 9 outputting a d-axis voltage and a vertical q-axis voltage, a q-axis voltage computing unit 11 of calculating the q-axis voltage from the d-axis current, the q-axis current, the revolution speed of the permanent magnet type synchronous motor 1, the primary resistance of the permanent magnet type synchronous motor 1, the d-axis inductance in the direction parallel with the permanent magnet and the q-axis inductance in the vertical direction, a magnetic flux compensation part 14 compensating for the magnetic flux of the permanent magnet from the calculated q-axis voltage and q-axis voltage, and a magnetic flux compensation comparison part 18 for comparing the magnetic flux compensation value and the magnetic flux compensation level, and detecting abnormality when the magnetic flux compensation value goes above the magnetic flux compensation level.SELECTED DRAWING: Figure 1
More Like This:
| JP3309520 | CONTROL METHOD FOR INDUCTION MOTOR |
| JP4883151 | Rotating machine control device |
| JP2019161875 | MOTOR CONTROLLER |
Inventors:
KIRITANI TOMOAKI
Application Number:
JP2018096493A
Publication Date:
November 21, 2019
Filing Date:
May 18, 2018
Export Citation:
Assignee:
TOYO ELECTRIC MFG CO LTD
International Classes:
H02P21/16; H02P21/22
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Makoto Fukuo
Kimizuka Emi
Mitsutsugu Sugimura
Makoto Fukuo
Kimizuka Emi