POWER CONTROLLER
First Claim
1. A power controller configured to extract power from a group of solar cells, comprising:
- a plurality of converters provided for each group of solar cells and configured to convert output power of the solar cells;
a charger including an input to which outputs of the plurality of converters are connected and configured to convert an input voltage with maintaining the input voltage to a reference voltage during charging; and
a plurality of control devices configured to control each of the plurality of converters independently, whereineach of the plurality of control devices is configured to control so as to;
gradually increase the output voltage of the converter from the reference voltage;
measure the output power of the solar cell each time the output voltage of the converter is increased; and
search for the output voltage where the measured output power is maximum and maintain that output voltage.
2 Assignments
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Accused Products
Abstract
A plurality of DC/DC converters is provided for each group of solar panels and is configured to convert an output power of the solar panels. A charger includes an input to which outputs of the plurality of DC/DC converters are connected and is configured to convert an input voltage with maintaining the input voltage to a lower limit voltage during charging. The control device controls each of the plurality of DC/DC converters independently. Each of the plurality of control devices is configured to control so as to gradually increase the output voltage of the DC/DC converter from the lower limit voltage, measure the output power of the solar panel each time the output voltage is increased, and search for the output voltage where the measured output power is maximum and maintain that output voltage.
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Citations
4 Claims
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1. A power controller configured to extract power from a group of solar cells, comprising:
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a plurality of converters provided for each group of solar cells and configured to convert output power of the solar cells; a charger including an input to which outputs of the plurality of converters are connected and configured to convert an input voltage with maintaining the input voltage to a reference voltage during charging; and a plurality of control devices configured to control each of the plurality of converters independently, wherein each of the plurality of control devices is configured to control so as to; gradually increase the output voltage of the converter from the reference voltage; measure the output power of the solar cell each time the output voltage of the converter is increased; and search for the output voltage where the measured output power is maximum and maintain that output voltage. - View Dependent Claims (2, 3, 4)
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Specification