Title:
FAILURE DIAGNOSIS METHOD FOR SOLAR CELL MODULE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/033002
Kind Code:
A1
Abstract:
[Problem] To obtain an I-V curve from various types of measured values constantly acquired from a power generation control device (PCS) during operation of a solar power generation system, and to enable diagnosis of a failure that can only be found on the I-V curve level. [Solution] In the present invention, a solar power generation system includes a power generation control device (2) provided with an output control function, and a control terminal (6) that provides an output command value to the power generation control device (2) and that receives measurement data of the power generation control device (2), wherein the solar power generation system is characterized in that the control terminal (6) changes control command values continuously and in a stepwise manner between 100% and 0% and sends the results to the power generation control device (2), and sequentially acquires and records voltage values and current values obtained as response outputs to the foregoing, and as a result thereof, draws a portion of an I-V curve. Furthermore, a method for obtaining a complete I-V curve from a partial I-V curve is provided.
Inventors:
HORII MASAYUKI (JP)
IKUTA KUNIHIKO (JP)
IKUTA KUNIHIKO (JP)
Application Number:
PCT/JP2022/032658
Publication Date:
March 09, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
LAPLACE SYSTEM CO LTD (JP)
International Classes:
G05F1/67; H02S50/10
Foreign References:
| JP2018064360A | 2018-04-19 | |||
| CN104716903A | 2015-06-17 | |||
| JP2019161815A | 2019-09-19 | |||
| JP2016048972A | 2016-04-07 | |||
| US20190312547A1 | 2019-10-10 |
Attorney, Agent or Firm:
M & PARTNERS IP, P.C. (JP)
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