| 摘要 |
PURPOSE: To provide a power control system for stably extracting a maximum output from a solar battery. CONSTITUTION: Concerning the photovoltaic power generation system equipped with a solar battery 1, power converting means 2 for supplying power from the solar battery 1 to a load 3, current detecting means 5 for detecting the output current of the solar battery 1, voltage detecting means 5 for detecting the output voltage of the solar battery 1 and light quantity detecting means 6 for detecting the quantity of sunlight, this system is provided with an arithmetic means 7 for inputting a light quantity detecting signal from the light quantity detecting means and outputting a first command signal i1 corresponding to prescribed function characteristics, control means 8 for inputting a current signal from the current detecting means and a voltage signal from the voltage detecting means and outputting a second command signal i2 so as to maximize power calculated as the product of the current signal and the voltage signal, and adding means 9 for adding the first and second command signals and outputting an added value i3 as the output command value of the power converting means.
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