Patent ID: 8625318

Claim:
A power converter configured to convert DC power generated by a power generator into AC power, the power converter comprising: a boost converter circuit configured to boost an output voltage of the power generator; an inverter circuit configured to convert an output voltage of the boost converter circuit into AC power and to interconnect the AC power with a power system; a buck converter circuit configured to perform power conversion of output power of the boost converter circuit and to supply resultant power to an internal load; and a controller, wherein the controller is configured to: control the output voltage of the boost converter circuit to be higher than or equal to a first voltage value which is greater than the maximum value of AC voltage of the power system, in a case of interconnecting output power of the power generator with the power system via the boost converter circuit and the inverter circuit; and control the output voltage of the boost converter circuit to be lower than or equal to a second voltage value which is less than the maximum value of AC voltage of the power system, in a case of supplying output power of the power generator to the internal load via the boost converter circuit and the buck converter circuit.