Title:
太陽光発電用集電箱、太陽光発電装置および制御方法
Document Type and Number:
Japanese Patent JP3754898
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent overheating of a damaged part associated with the occurrence of abnormality by detaching only a solar cell string causing abnormality such as an earth fault for continuous operation of a normal solar cell string and assurance of the safety of the detached solar cell string. SOLUTION: This device includes a detector 2-3 outputting an abnormality detection signal if abnormality is detected in any of a plurality of solar cell strings 1-1 to 1-4 in series with a plurality of solar cell panels, an intermediate switch 2-1 disposed on the way of the solar cell strings 1-1 to 1-4 and transitioning to an open condition by an abnormality detection signal from the detector 2-3, and a string switch 2-1 detachable for each solar cell string. The string switch 2-2 also opens by the abnormality detection signal of the detector 2-3.
Inventors:
Hiroshi Kondo
Nobuyoshi Takehara
Manabe Naoki
Nobuyoshi Takehara
Manabe Naoki
Application Number:
JP2001048477A
Publication Date:
March 15, 2006
Filing Date:
February 23, 2001
Export Citation:
Assignee:
Canon Inc
International Classes:
H01L31/04; H02H3/16; G05F1/56; G05F1/67; H02H7/00
Domestic Patent References:
| JP9113561A | ||||
| JP7177653A | ||||
| JP897460A | ||||
| JP11330521A | ||||
| JP2000114567A | ||||
| JP7334767A |
Attorney, Agent or Firm:
Tetsuya Ito