| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar power generating device which can maintain the power factor of an interconnection point with an AC power system at a prescribed value using a current detecting device. SOLUTION: The solar power generating device has a DC-AC converter which converts DC power generated by solar cells to a predetermined AC power, a LC filter which comprises a reactor and a capacitor for making the output waveform a sinusoidal one, the current detecting device which detects the output current of the DC-AC converter for grid-connecting with the AC power system, and a control part which controls the DC-AC converter by detecting the detecting signal of the current detector and the voltage of the capacitor. The control part uses the detecting signal of the current detecting device for the current feedback control, and makes the control to maintain the power factor of the interconnection point with the AC power system at the prescribed value, by the detecting signal predicting the current flowing into the capacitor. |
