CONTROL DEVICE, POWER-FEEDING SYSTEM, CONTROL METHOD, AND PROGRAM

摘要

An electricity-generating device (3040) generates electricity and outputs a current to a DC bus (3020). Said DC bus (3020) outputs a current to a load (4000) and a rechargeable battery (3060). A system power supply (5000) is connected to the DC bus (3020) via a rectifier (3080). The output voltage of the electricity-generating device (3040) is higher than the output voltage of the rectifier (3080). If the voltage of the DC bus (3020) falls below the output voltage of the electricity-generating device (3040), the rectifier (3080) outputs a current from the system power supply (5000) to the DC bus (3020). A control device (2000) obtains the magnitude of the current outputted by the rectifier (3080) from a measuring device (3100) and controls the magnitude of the current inputted to the rechargeable battery (3060) from the DC bus (3020) so as to keep the measured current magnitude at a prescribed value that is greater than 0.