Power supply system, vehicle including the same, control method for power supply system, and computer-readable recording medium recording program for causing computer to execute the control method

A control method for a power supply system capable of supplying/receiving electric power to/from a load device, said power supply system including:

• a power line for supplying/receiving the electric power between said power supply system and said load device;
• a plurality of power storage devices that are chargeable/dischargeable;
• and
• a plurality of converters corresponding to said plurality of power storage devices, and each configured to be capable of performing voltage conversion between the corresponding power storage device and said power line;
• said control method comprising the steps of:
• setting a target voltage of said power line;
• determining whether or not said target voltage is lower than a target voltage lower limit value that is set higher than a maximum one of voltages of said plurality of power storage devices;
• setting said target voltage lower limit value as said target voltage when said target voltage is determined to be lower than said target voltage lower limit value;
• and
• controlling a voltage of said power line to be said target voltage by controlling at least one of said plurality of converters,
• wherein said target voltage lower limit value is set to a voltage that is not affected by a dead time to prevent a short circuit in upper and lower arms of said plurality of converters.