Title:
ABNORMALITY DETERMINATION SYSTEM AND POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/256170
Kind Code:
A1
Abstract:
The present invention provides an abnormality determination system and a power generation system capable of quickly, compared to the prior art, determining an abnormality of solar power generation equipment. The present invention comprises: a power generation amount measurement unit that measures the amount of power generated by solar power generation equipment; a data acquisition unit that acquires solar radiation amount data; a calculation unit that calculates a division value by dividing the integrated value of the daily power generation amount by the integrated value of the daily solar radiation amount; and a data accumulation unit that accumulates combinations of the power generation amount and the solar radiation amount, or the division values. The invention is configured to determine an abnormality in any case among (1)-(3) described below. (1) A case in which an average value of the division values for a reference period is calculated in advance from division values calculated in the past, and the gradient of the division values with respect to the average value of the division values for the reference period falls below a threshold value. (2) A case in which an average value of the division values for the reference period is calculated by the calculation unit, and the gradient of the division values with respect to the average value of the division values for the reference period falls below the threshold value. (3) A case in which the gradient of the regression line of the division values for a determination period falls below a threshold value.
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Inventors:
NASUNO YOSHIYUKI (JP)
Application Number:
PCT/JP2021/019332
Publication Date:
December 23, 2021
Filing Date:
May 21, 2021
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
G08B21/18; H02J3/38; H02S50/00
Domestic Patent References:
| WO2016166991A1 | 2016-10-20 |
Foreign References:
| JP2011216811A | 2011-10-27 | |||
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Attorney, Agent or Firm:
FUJITA Takashi et al. (JP)
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