Title:
コイル内の短絡を検出するための方法
Document Type and Number:
Japanese Patent JP6507251
Kind Code:
B2
Abstract:
Method for detecting short-circuits in a coil in an electric machine, includes: a) arranging a coil in an air gap between the rotor and stator; c) recording signal curves generated by the coil; d) determining zero crossings of the curve and storing the times thereof; e) determining zero crossings of the curve corrected by an offset c, identifying a pair of immediately consecutive zero crossings, the time separation of which is longer than the minimum duration; f) in no pair is identified, repeating step e) until identified, wherein the offset c is varied from the zero point to a global extreme value of the curve; g) identifying at least one of the two stored times, which lies between and closest in time to the pair and; h) extracting two half-waves from the curve using times identified in step g), wherein each half-wave corresponds to half a revolution of the rotor.
Inventors:
Oliver Schoenfelder
Dagmar Teen
Dagmar Teen
Application Number:
JP2017537239A
Publication Date:
April 24, 2019
Filing Date:
December 03, 2015
Export Citation:
Assignee:
Siemens Actien Gezelshaft
International Classes:
G01R31/06; H02K15/08
Domestic Patent References:
| JP2009213346A | ||||
| JP60167654A | ||||
| JP2004159496A |
Foreign References:
| US20090219030 | ||||
| US20120259563 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Shinya Mitsuhiro