Title:
太陽光発電システムの発電状況診断方法及びその装置
Document Type and Number:
Japanese Patent JP6608619
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To speedily and surely detect performance deterioration caused by a fault of a solar cell panel by comparing a high-precision estimated power generation amount with an actually measured power generation amount.SOLUTION: A weather condition value and a power generation amount relating to power generation in a photovoltaic power generation system are measured at an interval of a fixed time for a fixed period (S-1), an estimation parameter is learnt (S-3) while excluding predetermined non-suitable power generation amount data from measured data (S-2) and successively updating the remaining power generation amount data, and the estimation parameter is determined (S-4). The estimated power generation amount is calculated (S-5) from the estimation parameter while taking the weather condition value relating to the power generation into account, the estimated power generation amount is compared with the actually measured power generation amount (S-6) and if the actually measured power generation amount is equal to or less than a fixed value of the estimated power generation amount, an alarm is issued by discriminating the presence of abnormality in the photovoltaic power generation system (S-7).SELECTED DRAWING: Figure 1
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Inventors:
Junya Kanno
Nobuyuki Sato
Mari Nagasaka
Makoto Sato
Hiroshi Nakamura
Eiichi Nakajima
Yusuke Miyamoto
Nobuyuki Sato
Mari Nagasaka
Makoto Sato
Hiroshi Nakamura
Eiichi Nakajima
Yusuke Miyamoto
Application Number:
JP2015106314A
Publication Date:
November 20, 2019
Filing Date:
May 26, 2015
Export Citation:
Assignee:
TEPCO Holdings Co., Ltd.
Toshiba Energy Systems Co., Ltd.
Kandenko Co., Ltd.
Toshiba Energy Systems Co., Ltd.
Kandenko Co., Ltd.
International Classes:
H02S50/00; H02J3/00
Domestic Patent References:
| JP2013073537A | ||||
| JP2012043857A | ||||
| JP2014175478A | ||||
| JP2013099143A | ||||
| JP2008077561A | ||||
| JP2012104750A |
Foreign References:
| US20150142347 |
Attorney, Agent or Firm:
Noriaki Fujisawa
Shotaro Fujisawa
Shotaro Fujisawa