| 摘要 |
PROBLEM TO BE SOLVED: To provide a cluster state monitoring device capable of detecting abnormality of a cluster in a state capable of power generation.SOLUTION: In a cluster state monitoring device 30, a module string detects the voltage between the terminals of a plurality of clusters 12, consisting of a predetermined number of solar cells, as a cluster voltage. The module string compares the cluster voltage each other, determines that there is abnormality if a cluster voltage abnormal when compared with others is detected, thus detecting light reception abnormality and deterioration abnormality of a cluster in a state capable of power generation. |
