US 11,990,867 B2
Information processing apparatus, control method, and program
Koichiro Niira, Higashioumi (JP); Shinsuke Uchida, Ise (JP); Takuya Kurose, Koka (JP); Shinji Yada, Ise (JP); Kyosuke Fujiwara, Suzuka (JP); Hidetaka Takato, Koriyama (JP); Katsuhiko Shirasawa, Koriyama (JP); and Yuji Ino, Koriyama (JP)
Assigned to KYOCERA CORPORATION, Kyoto (JP)
Appl. No. 17/437,404
Filed by KYOCERA Corporation, Kyoto (JP)
PCT Filed Mar. 6, 2020, PCT No. PCT/JP2020/009892
§ 371(c)(1), (2) Date Sep. 8, 2021,
PCT Pub. No. WO2020/184495, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 2019-043208 (JP), filed on Mar. 8, 2019; application No. 2019-043209 (JP), filed on Mar. 8, 2019; application No. 2019-114877 (JP), filed on Jun. 20, 2019; application No. 2019-114880 (JP), filed on Jun. 20, 2019; application No. 2020-039351 (JP), filed on Mar. 6, 2020; application No. 2020-039352 (JP), filed on Mar. 6, 2020; and application No. 2020-039355 (JP), filed on Mar. 6, 2020.
Prior Publication US 2022/0190782 A1, Jun. 16, 2022
Int. Cl. H02S 50/10 (2014.01); H02S 40/40 (2014.01)
CPC H02S 50/10 (2014.12) [H02S 40/40 (2014.12)] 15 Claims
OG exemplary drawing
 
1. An apparatus for predicting useful life of a photovoltaic module, comprising:
an input that receives first information indicating an amount of hygrothermal stress that a photovoltaic module undergoes from a start until an end of a period during which the photovoltaic module outputs predetermined electric power, and receives second information indicating an amount of hygrothermal stress that the photovoltaic module undergoes per a predetermined time in a field where the photovoltaic module is deployed, the second information generated based on information about daily maximum temperatures of the photovoltaic module in the field where the photovoltaic module is deployed; and
an output that outputs result information about a predicted period during which the photovoltaic module is expected to output the predetermined electric power when the photovoltaic module is deployed in the field,
wherein
the second information is generated based on an activation energy of hygrothermal degradation obtained from results of damp heat tests performed on same type of photovoltaic modules as the photovoltaic module under two or more temperature conditions, and
the second information is generated based on a value obtained by dividing
a sum total in a unit of the predetermined time,
an amount that is in proportion to daily hygrothermal stress in the photovoltaic module deployed in the field, by
an amount that is in proportion to hygrothermal stress per unit time at a maximum temperature of the photovoltaic module deployed in the field.