| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar battery controller and a solar battery control method capable of improving follow-up performance as compared with a conventional technique in a case of exerting a solar battery maximum power point follow-up control in view of a change in solar radiation.SOLUTION: An output voltage and an output current of a solar battery 1 are detected and power generated by the solar battery 1 is calculated based on those detection values. On the other hand, solar radiation change detection means 8 detects a change in solar radiation on the basis of the detection values of the output voltage and the output current of the solar battery 1, voltage setting means 4 switches over between a setting of a target value V* of the output voltage using changes in generated power at two measuring points and a setting of a target value V* of the output voltage using changes in generated power at three measuring points depending on a detection result of the change in solar radiation, and voltage control means 5 controls the output voltage of the solar battery 1 via a power converter 6 so that the output voltage is equal to the target value V* of the output voltage switched and set. |
