Title:
VECTOR CONTROLLER OF PERMANENT MAGNET TYPE SYNCHRONOUS MOTOR
Document Type and Number:
Japanese Patent JP2017011937
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a vector controller of a permanent magnet type synchronous motor which is applicable even under various operation conditions of the motor, and can estimate a magnet magnetic flux with high accuracy.SOLUTION: The present invention is a vector controller of a permanent magnet synchronous motor which performs vector control of output voltage of an inverter 14 which drives a permanent magnet synchronous motor 16 according to a torque command Tr, is provided with: reactive power acquisition means 20 for calculating or detecting reactive power Q of a motor 16 on the basis of voltage command values Vd, Vqof a d axis and a q axis, detection values of current Iu, Iv, Iw to be supplied from an inverter to the motor 16; and magnet magnetic flux estimation means 21 for estimating a magnet magnetic flux φm on the basis of current Id of a d axis, the reactive power Q, and angular velocity ω of the motor 16, and drives the motor 16 while making current Iq of a q axis into a positive fixed value, and changing the current Id of the d axis into a plurality of negative values in estimation of the magnet magnetic flux φm.SELECTED DRAWING: Figure 1
Inventors:
SUDA MASANORI
TAKAGI KEIJI
MATSUMOTO YUJI
TSUJIMURA YOSHINORI
MICHIKI SHINJI
HASEGAWA MASARU
MATSUMOTO JUN
KONDO KOSUKE
TAKAGI KEIJI
MATSUMOTO YUJI
TSUJIMURA YOSHINORI
MICHIKI SHINJI
HASEGAWA MASARU
MATSUMOTO JUN
KONDO KOSUKE
Application Number:
JP2015127078A
Publication Date:
January 12, 2017
Filing Date:
June 24, 2015
Export Citation:
Assignee:
NGK SPARK PLUG CO
UNIV NAGOYA
UNIV CHUBE
UNIV NAGOYA
UNIV CHUBE
International Classes:
H02P21/00; H02P27/04
Domestic Patent References:
| JP2007159212A | 2007-06-21 | |||
| JPH11235100A | 1999-08-27 | |||
| JP2012016166A | 2012-01-19 |
Attorney, Agent or Firm:
Kohei Shuto