Title:
温度推定方法
Document Type and Number:
Japanese Patent JP6839674
Kind Code:
B2
Abstract:
To provide a temperature estimation method that readily estimates a temperature of a levitation guide coil device in a magnetic levitation type railway ground coil device without attaching a temperature sensor.SOLUTION: A temperature estimation method is configured to: energize an AC current to a plurality of propulsion coils 7a provided on one side in a width direction of a track 1 to generate a magnetic field; measure potential or waveform of a current to be inducted to a plurality of propulsion coils 7b provided on an opposite side in the width direction of the track 1 via a plurality of levitation guide coils 6a provided on the one side in the width direction of the track 1, and a plurality of levitation coils 6b provided on the opposite side in the width direction of the rack 1; and estimate an average temperature of the plurality of levitation guide coils 6a and the plurality of levitation coils 6b on the basis of the measured waveform.SELECTED DRAWING: Figure 6
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Inventors:
Taku Sasakawa
Minoru Tanaka
Minoru Tanaka
Application Number:
JP2018026241A
Publication Date:
March 10, 2021
Filing Date:
February 16, 2018
Export Citation:
Assignee:
Railway Technical Research Institute
International Classes:
G01K3/02; B60L13/03; B61B13/08; B61K9/08; G01K13/00
Domestic Patent References:
| JP56129723U | ||||
| JP686410A | ||||
| JP7298412A | ||||
| JP7236205A | ||||
| JP2003315166A | ||||
| JP9292288A |
Attorney, Agent or Firm:
Higuchi Tenkou