Title:
太陽光発電システムの診断システム及び診断方法
Document Type and Number:
Japanese Patent JP6479645
Kind Code:
B2
Abstract:
A diagnosis system including: a power collection unit configured to couple a plurality of photovoltaic cell arrays, each including photovoltaic cells, in parallel; a control unit; and a monitoring unit, the monitoring unit being configured to: estimate a solar radiation amount and an operating temperature of the photovoltaic cell arrays based on the current value measured by a first ammeter in the control unit and the voltage value measured by the first voltmeter in the control unit by using an expression expressing a relationship between the solar radiation amount, the operating temperature, and a number of photovoltaic cells, and an output current; correct the estimated values so as to match the current values measured by second ammeters in the power collection unit by using the expression; and calculate a theoretical current value of each of the photovoltaic cell arrays based on the corrected values by using the expression.
Inventors:
Toru Kono
Hideyuki Shimonishi
Yutaka Saki Masato
Tetsuji Ohya
Kenichi Gokita
Tomoji Nakamura
Hideyuki Shimonishi
Yutaka Saki Masato
Tetsuji Ohya
Kenichi Gokita
Tomoji Nakamura
Application Number:
JP2015244009A
Publication Date:
March 06, 2019
Filing Date:
December 15, 2015
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H02J13/00; G01N27/00; H02S50/00
Domestic Patent References:
| JP2015068690A | ||||
| JP2013038345A | ||||
| JP2006229063A |
Attorney, Agent or Firm:
Fujio Patent Office