Patent ID: 7656059

Claim:
A variable capacity grid system for transmitting power between at least one external power source and an alternating current (AC) power system, comprising: a first input power control (IPC) module, comprising: a first primary converter module operable to convert power received from a first external power source into a first amount of direct current (DC) power; and a first secondary converter module electrically coupled between the first primary converter module and the AC power system, operable to convert the first amount of DC power into a first amount of AC power, and further operable to transmit the first amount of AC power to the AC power system; and a second IPC module, comprising: a second primary converter module operable to convert power received from a second external power source into a second amount of DC power; and a second secondary converter module electrically coupled between the second primary converter module and the AC power system, operable to convert the second amount of DC power into a second amount of AC power, and further operable to transmit the second amount of AC power to the AC power system.