Title:
PARAMETER CALCULATION DEVICE, PARAMETER CALCULATION METHOD, AND PROGRAM
Document Type and Number:
Japanese Patent JP2023177081
Kind Code:
A
Abstract:
To suppress the increase in the number of times of magnetic field analyses when a change in temperature of a rotor has a relatively large width when using the magnetic field analysis to calculate parameters of an induction motor.SOLUTION: A parameter calculation device 1 includes a map creating unit 2 that creates a parameter map showing the correspondence between a parameter of an induction motor obtained on the basis of the stator current and a sliding angular frequency and a sliding angular frequency secondary resistance rate ωs/Rr, which is a value obtained by dividing a sliding angular frequency ωs by a secondary resistance Rr, or the sliding angular frequency ωs, and a parameter calculation unit 3 that calculates by referring to the parameter map a parameter corresponding to a stator current and a sliding angular frequency secondary resistance ratio ωs/Rr', which is a value obtained by dividing the sliding angular frequency ωs by a secondary resistance Rr' after the change, or a sliding angular frequency variation rate ωs/A, which is a value obtained by dividing the sliding angular frequency ωs by a variation rate A of the secondary resistance Rr' after the change to the secondary resistance Rr before the change.SELECTED DRAWING: Figure 1
Inventors:
MINOSHIMA NORIMOTO
FURUKAWA TOMOYASU
IWAI YOSHIKI
HIRAMOTO KENJI
NAKAI HIDEO
FURUKAWA TOMOYASU
IWAI YOSHIKI
HIRAMOTO KENJI
NAKAI HIDEO
Application Number:
JP2022089785A
Publication Date:
December 13, 2023
Filing Date:
June 01, 2022
Export Citation:
Assignee:
TOYOTA IND CORP
TOYOTA CENTRAL RES & DEV
TOYOTA CENTRAL RES & DEV
International Classes:
H02P23/14
Attorney, Agent or Firm:
Hiroyoshi Aoki
Masayuki Amada
Yoshiyuki Ohsuga
Masayuki Amada
Yoshiyuki Ohsuga