Title:
太陽光発電設備の異常検出システム
Document Type and Number:
Japanese Patent JP6611435
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an abnormality detection system for photovoltaic power generation facilities that can surely detect abnormality such as robbery even at night at low cost and with a simple system configuration.SOLUTION: In an abnormality detection system for photovoltaic power generation facilities having lower-order units for aggregating DC power created by a solar battery unit and an upper-order unit for aggregating DC power aggregated in the lower-order units, the plural lower-order units are connected to the upper-order unit in parallel. A measuring unit for measuring impedance is provided to each wiring cable through which each lower-order unit and the upper-order unit are connected to each other. A determination part for detecting the abnormality based on the measurement result when the solar battery unit is under a non-power generation state is provided at the upstream side of each measuring unit. In the measuring unit, the composite impedance aggregated in each of all the lower-order units connected to the upper-order unit in parallel is measured as the impedance.SELECTED DRAWING: Figure 4
Inventors:
Matsuyuki Masayuki
Hiroaki Yoshioka
Kazuaki Hayashi
Hiroaki Yoshioka
Kazuaki Hayashi
Application Number:
JP2015005525A
Publication Date:
November 27, 2019
Filing Date:
January 15, 2015
Export Citation:
Assignee:
Nitto Kogyo Co., Ltd.
International Classes:
H02S50/00; G08B13/22
Domestic Patent References:
| JP2013251581A | ||||
| JP2013016640A | ||||
| JP2009021341A | ||||
| JP2014071082A | ||||
| JP2014186022A | ||||
| JP2012205078A | ||||
| JP2013156125A | ||||
| JP2013527613A | ||||
| JP2008271693A | ||||
| JP2014514582A |
Foreign References:
| WO2013151102A1 | ||||
| WO2011032993A1 |
Attorney, Agent or Firm:
Patent Business Corporation Najima Patent Office