POWER SYSTEM

A power system has: an electrical load; first and second lines respectively including first and second power sources; and inter-line switch. The first power source outputs a power supply voltage. The second power source includes a storage battery. The power system includes: an anomaly determination unit determining an anomaly in the first line; a state control unit opening the inter-line switch if the occurrence of an anomaly is determined; first and second paths in parallel to each other between a connection point to the connection path and the second power source in the second line; a charging unit on the first path to charge the storage battery to a higher voltage than the power supply voltage of the first power source; and a discharge regulation unit on the second path to regulate discharge of the storage battery in the second line.