Electric power generating system with a plurality of electric power sources parallely feeding a DC voltage line which supplies power to an AC grid

摘要

An electric power generating system (1) comprises a plurality of electric power sources (2,3), a power connection line (4), a plurality of electric power conversion units (5,6) whose inputs are connected to the outputs of respective electric power sources (2,3) and whose outputs are connected in parallel to the electric connection line (4), and power transformer means (7) for feeding an AC voltage into a power distribution network (8). Particularly, each electric power conversion unit (5,6) comprises a converter (10,11) adapted to convert the voltage generated by each electric power source (2,3) into a medium voltage DC voltage, the electric connection line (4) is configured for carrying medium voltage DC voltage. A DC/AC converter means (9) is connected to the electric connection line (4) and the power transformer means (7).