Title:
CONTROLLER OF DYNAMO-ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP2017192178
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a controller of dynamo-electric machine capable of stabilizing rotational speed control of a dynamo-electric machine, regardless of the drive conditions thereof.SOLUTION: A coordinate axis extending in the direction of a voltage vector applied to a dynamo-electric machine is defined as the δ-axis, a coordinate axis extending in the direction orthogonal to the δ-axis is defined as the γ-axis, and a coordinate axis deviated by a prescribed angle λ from the δ-axis is defined as t-axis. When a current flowing to the dynamo-electric machine changes as a speed command value ω* changes, a controller 30 sets the prescribed angle λ so that the absolute value of the t-axis component of current change amount is larger than that when assuming that the δ-axis and t-axis match. The controller 30 calculates the t-axis component ΔIt of current change amount flowing to the dynamo-electric machine, based on the prescribed angle λ thus set. The controller 30 corrects a speed command value ω based on the t-axis component ΔIt, and performs rotational speed control based on the corrected speed command value ω*.SELECTED DRAWING: Figure 2
Inventors:
MATSUKI YOSUKE
AOKI YASUAKI
AOKI YASUAKI
Application Number:
JP2016079122A
Publication Date:
October 19, 2017
Filing Date:
April 11, 2016
Export Citation:
Assignee:
DENSO CORP
International Classes:
H02P21/24
Domestic Patent References:
| JP2012130183A | 2012-07-05 | |||
| JP2008245397A | 2008-10-09 | |||
| JP2000236694A | 2000-08-29 | |||
| JP2017011856A | 2017-01-12 |
Foreign References:
| US6940251B1 | 2005-09-06 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita