POWER SUPPLY SYSTEM AND METHOD FOR CONTROLLING SAME

摘要

A power supply system (20) for supplying electric power to a load (10) is provided with a first power storage device (100), a second power storage device (150), a power line (HPL) for transmitting electric power inputted to and outputted from the load (10), a converter (110) for executing bi-directional DC voltage conversion between the first power storage device (100) and the power line (HPL), and a switch (RL1) connected between the second power storage device (150) and the power line (HPL). A controller (300) controls a voltage of the converter (110) so that a voltage value of the power line (HPL) becomes a voltage command value when the switch (RL1) is off, and controls the current of the converter (110) so that a current value of the first power storage device (100) becomes a current command value when the switch (RL1) is on.