ABNORMALITY DIAGNOSIS DEVICE AND ABNORMALITY DIAGNOSIS METHOD

To provide an abnormality diagnosis device that can conduct abnormality diagnosis of a motor without performing settings of a number of parameters.SOLUTION: An abnormality diagnosis device 40 comprises: a current measurement unit 410 that measures a load current of a motor 20; a frequency analysis u...

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Bibliographic Details
Main Authors TAKEUCHI TAKESHI, YAMADA TOMOHIRO, MATSUMOTO TORU, SATO TAKAHIRO, TAKATANI RYOHEI, YOKOTA KOJI, IKEUCHI RYO
Format Patent
LanguageEnglish
Japanese
Published 08.02.2024
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Summary:To provide an abnormality diagnosis device that can conduct abnormality diagnosis of a motor without performing settings of a number of parameters.SOLUTION: An abnormality diagnosis device 40 comprises: a current measurement unit 410 that measures a load current of a motor 20; a frequency analysis unit 411 that performs frequency analysis of the load current; and a deterioration degree calculation unit 412 that adds up, within a preset frequency range, a preset number of intensity values from the top rank to calculate a degree of deterioration.SELECTED DRAWING: Figure 2 【課題】多くのパラメータの設定を行うことなく、モータの異常診断が可能な異常診断装置を提供すること。【解決手段】異常診断装置４０は、モータ２０の負荷電流を測定する電流測定部４１０と、負荷電流を周波数解析する周波数解析部４１１と、予め設定された周波数範囲で、上位から予め設定された数の強度値を合算して劣化度を算出する劣化度算出部４１２とを備える。【選択図】図２
Bibliography:Application Number: JP20230204040