Power conditioner and power system

A power system comprising a power conditioner and a chopper device, characterized in that:

• the power conditioner comprises:
• a first DC/DC converter connected to a first power supply device and having at least one switching element;
• an inverter connected to the first DC/DC converter;
• a plus side wiring for connecting the first DC/DC converter and the inverter;
• a minus side wiring for connecting the first DC/DC converter and the inverter;
• a capacitor having one end connected to the plus side wiring and having an other end connected to the minus side wiring;
• a fuse provided on the minus side wiring;
• and
• a connection wiring for connecting the switching element to the minus side wiring,
• the chopper device comprises:
• a second DC/DC converter connected to a second power supply device;
• a plus side connection wiring connected to the second DC/DC converter;
• and
• a minus side connection wiring connected to the second DC/DC converter,
• the other end of the capacitor is connected to a first connection point provided on the minus side wiring on a side of the first DC/DC converter with respect to the fuse,
• the switching element is connected to a second connection point provided on the minus side wiring on a side of the inverter with respect to the fuse,
• the plus side connection wiring is connected to the plus side wiring,
• the minus side connection wiring is connected to the minus side wiring on the side of the inverter with respect to the fuse or is connected to the connection wiring.