Title:
誘導モータドライブ及びそのパラメータ評価方法
Document Type and Number:
Japanese Patent JP4253903
Kind Code:
B2
Abstract:
In an induction motor drive system with/without a speed sensor, resistance values are stably and accurately estimated during the operation of the motor regardless of the operating conditions such as a speed, a load, etc. and of a particular combination of parameters. A suitable point Pr is taken inside a current locus on a stator current vector plane, and a measured current is and an observed current is' are referenced from this point Pr. The difference between the magnitudes of two vectors is and is' is associated with an error of a rotor resistance Rr, while the difference between phase shifts is associated with an error of a stator resistance Rs.
Inventors:
Giuseppe Guy
Application Number:
JP7482199A
Publication Date:
April 15, 2009
Filing Date:
March 19, 1999
Export Citation:
Assignee:
Fuji Electric Systems Co., Ltd.
International Classes:
H02P21/00; H02P21/06; H02P21/10; H02P21/14; H02P21/16; H02P21/18; H02P21/22; H02P21/24; H02P21/26; H02P21/28; H02P23/07; H02P23/14; H02P23/16; H02P27/04; H02P29/00; H02P29/40
Domestic Patent References:
| JP9149698A | ||||
| JP10225200A | ||||
| JP8205585A | ||||
| JP11341898A |
Attorney, Agent or Firm:
Yoshiyuki Osuga