| 摘要 |
PROBLEM TO BE SOLVED: To provide a power distribution circuit for a solar cell, capable of improving efficiency of output power by smoothing a level difference which appears in current versus voltage characteristics of a photovoltaic power generation system in the case where output from a solar cell in a part of the system is reduced due to the shade or the like.SOLUTION: A power distribution circuit for a solar cell comprises: a power distribution line 2 connecting positive pole terminals P1 of serially connected and neighboring solar cell modules M1, M2 with each other; a power distribution line 3 for connecting negative pole terminals P2 with each other; low-pass filters LPF1, LPF2 connected over the power distribution lines 2, 3; a power distribution capacitor C; switching elements S1, S2, S3, S4 provided in the power distribution lines 2, 3; and a switching control circuit for synchronously and periodically performing ON/OFF control on the switching elements S1, S2 and performing ON/OFF control on the switching elements S3, S4 in an inverse phase to the switching elements S1, S2. |
