Photovoltaic power generator
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Abstract
A photovoltaic power generator which outputs power generated by a solar battery panel through a DC-DC converter detects a time point at which a time differentiation value of output voltage of the solar battery panel substantially becomes zero, obtains power variation from the output power of the solar battery panel at each time point, controls the DC-DC converter based on the power variation, thereby swiftly and precisely tracking the maximum power point of the solar battery panel even when hysteresis loop (dynamic characteristic) is generated.
48 Citations
24 Claims
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1-9. -9. (canceled)
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10. A photovoltaic power generator providing power generated by a solar battery panel through a DC-DC converter, wherein
a maximum power condition of the solar battery panel is explored by controlling the DC-DC converter based on an output power of the solar battery panel at a time point at which a time differentiation value of the output voltage of the solar battery panel substantially becomes zero.
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21. A control method of a photovoltaic power generator providing power generated by a solar battery panel through a DC-DC converter, comprising:
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detecting a time point at which a time differentiation value of an output voltage of the solar battery panel substantially becomes zero; and
controlling the DC-DC converter based on the output power of the solar battery panel at the detected time point to explore the maximum power condition of the solar battery panel. - View Dependent Claims (22, 23, 24)
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Specification