Medium voltage DC collection system

摘要

A power generation system includes at least one generator having at least two sets of stator windings, an active rectifier comprising power cell based modular converters associated with each set of generator windings. Each set of windings is connected to an AC voltage side of the associated active rectifier, with each active rectifier having a positive DC voltage output and a negative DC voltage output. The DC voltage outputs of active rectifiers are connected to each other in series. A medium voltage DC (MVDC) collection network comprises positive pole cables and negative pole cables, wherein each positive pole cable is connected to the positive DC voltage output of a first active rectifier and each negative pole cable is connected to the negative DC voltage output of a last active rectifier. A substation receives the negative and positive pole cables of the MVDC collection network for further transformation and transmission.

主权项

1. A power generation system, comprising:
at least one generator, each said generator having at least two sets of stator windings; an active rectifier comprising power cell based modular converters associated with each set of said stator windings, with each set said windings being connected to an AC voltage side of said associated active rectifier and each said active rectifier having a positive DC voltage output and a negative DC voltage output, wherein said negative DC voltage output of one of said active rectifiers is connected to said positive DC voltage output of another of said active rectifiers; a medium voltage DC (MVDC) collection network comprising positive pole cables and negative pole cables, wherein each said positive pole cable is connected to said positive DC voltage output of a first active rectifier and each said negative pole cable is connected to said negative DC voltage output of a last active rectifier; and a substation receiving said negative and positive pole cables of said MVDC collection network wherein said substation comprises a plurality of DC/AC converters connected to said positive and negative pole cables of the said MVDC collection network, and said plurality of DC/AC converters converting direct current generated by said at least one generator to alternating current for further transformation and transmission of electricity generated by said at least one generator.