DIAGNOSIS APPARATUS, DIAGNOSIS METHOD, AND DIAGNOSIS PROGRAM FOR ROTARY MACHINE
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United States of America Patent
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Issued Date -
Sep 14, 2023
app pub date -
Feb 8, 2021
filing date -
Jul 31, 2020
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Abstract
A diagnosis apparatus for a rotary machine includes: a feature acquisition part configured to acquire, from a current waveform of a current measured during rotation of a rotary machine including a motor or a generator, a plurality of features each representing a characteristic of the current; and an abnormality determination part configured to determine whether there is an abnormality in the rotary machine on the basis of a divergence between a distribution of each of the plurality of features or a multi-dimensional distribution of the plurality of features and a reference distribution of each of the plurality of features or a reference multi-dimensional distribution during normal operation of the rotary machine.
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