| 摘要 |
PROBLEM TO BE SOLVED: To provide a power distribution circuit for solar cell, capable of distributing large power among solar cells of a photovoltaic power generation system in which a difference in power generation outputs is generated due to shade, and of smoothing steps occurring in current-voltage characteristics of the system to improve a power generation efficiency.SOLUTION: Surplus power of a solar cell M1 having a large power generation output is supplied via four switching elements S11-S14 repeating periodic ON/OFF operations and a capacitor C1 to a first coil L1 of a transformer T, and power induced by a second coil L2 of the transformer T is added to a power generation output of a solar cell 2 having a smaller power generation output via four switching elements S21-S24 repeating ON/OFF operations with a certain phase difference from the four switching elements S11-S14 and a capacitor C2. Thus, a step in the current-voltage characteristics of the system is smoothed.SELECTED DRAWING: Figure 1 |
