Power generation and low frequency alternating current transmission system
AssigneeSiemens Aktiengesellschaft
InventorRobert J. Nelson
Life of this patent
Estimating the term…
Abstract
A power generation and transmission system, including: a wind turbine having an electrical generator (12) producing AC electrical power at a production frequency; a converter connected to the electrical generator (12) and configured to convert the AC electrical power to a transmission frequency below a grid frequency; an insulated transmission cable (18) connected to the converter and disposed at least partly submarine or subterranean; and a synchronous frequency converter (24) remote from the wind turbine and configured to receive the AC electrical power from the insulated transmission cable (18) and to convert it to the grid frequency for supply to a grid.
Claims20
A power generation and transmission system comprising:
- a wind turbine comprising an electrical generator producing alternating current (AC) electrical power at a production frequency;
- a first synchronous frequency converter electrically connected to the electrical generator and configured to convert the AC electrical power to AC electrical power characterized by a transmission frequency that is less than a grid frequency;
- an insulated transmission cable configured to receive the AC electrical power at the transmission frequency from the first frequency converter, the transmission cable disposed at least partly submarine or subterranean;
- and
- a second synchronous frequency converter remote from the wind turbine and configured to receive the AC electrical power at the transmission frequency from the insulated transmission cable and to convert it to the grid frequency for supply to a grid configured to distribute AC electrical power at the grid frequency.
A method of power generation and transmission comprising:
- generating alternating current (AC) power using a power generation system;
- transmitting the AC power away from the power generation system at a transmission frequency that is below a grid frequency of a power grid via an insulated transmission cable at least partly disposed submarine or subterranean;
- receiving the AC power from the transmission cable at the transmission frequency at a location remote by a transmission distance from the power generation system;
- upconverting the AC power from the transmission frequency to the grid frequency;
- and
- delivering the AC power to the power grid at the grid frequency.
A power generation and transmission system comprising:
- a power generation system producing alternating current (AC) electrical power at a production frequency, the power generation system comprising an AC to DC rectifier, and a DC to AC inverter;
- a first frequency converter electrically connected to the power generation system and configured to convert the AC electrical power to AC electrical power characterized by a transmission frequency that is below a grid frequency;
- an insulated transmission cable configured to receive the AC electrical power at the transmission frequency from the first frequency converter, the transmission cable disposed at least partly submarine or subterranean;
- and
- a second frequency converter remote from the power generation system and configured to receive the AC electrical power at the transmission frequency from the insulated transmission cable and to convert it to the grid frequency for supply to a grid configured to distribute AC electrical power at the grid frequency.
Dependencies are inferred from the claim text.