TURBINE-BASED ENERGY GENERATION SYSTEM WITH DC OUTPUT

摘要

An energy generation system includes a turbine (102), an electric generator (100), a step-up transformer (106), and a converter (104). The turbine (102) is operable to extract energy from a fluid flow and convert the extracted energy into mechanical energy. The electric generator (100) is operable to convert the mechanical energy from the turbine (102) into AC electrical energy. The step-up transformer (106) is operable to transfer the AC electrical energy at a lower voltage from the electric generator (100) to a higher voltage. The converter (104) is operable to convert the AC electrical energy at the higher voltage to DC electrical energy. The converter (104) includes a converter leg (110) for a phase of the AC electrical energy. The converter leg (110) has an upper arm with a first plurality of sub-modules (112) and a lower arm with a second plurality of sub-modules (114). Each sub-module (112, 114) is operable to function as a controlled voltage source.