Microturbine/capacitor power distribution system
AssigneeCapstone Turbine Corporation
InventorJoel Wacknov
Life of this patent
Estimating the term…
Abstract
A power generation system is disclosed. In one embodiment, the power generation system includes a fuel source to provide fuel, a turbogenerator, coupled to the fuel source, to generate AC power, and a power controller electrically coupled to the turbogenerator. The power controller includes a first power converter to convert the AC power to DC power on a DC bus, and a second power converter to convert the DC power on the DC bus to an output power to supply a load. The power controller to regulate the fuel to the turbogenerator, independent of a DC voltage on the DC bus. A capacitor, such as an electrochemical capacitor or a hybrid capacitor, is coupled to the DC bus to source instantaneous power to and sink instantaneous power from the DC bus, due to load changes, to stabilize the DC voltage on the DC bus.
Claims29
A power generation system, comprising:
- a fuel source to provide fuel;
- a turbogenerator, coupled to the fuel source, to generate AC power;
- a power controller, electrically coupled to the turbogenerator, including first and second power converters, said first power converter to convert said AC power to DC power on a DC bus, and said second power converter to convert said DC power on said DC bus to an output power to supply a load, said power controller to regulate the fuel to the turbogenerator, independent of a DC voltage on the DC bus;
- and
- a capacitor coupled to the DC bus, said capacitor to source power to and sink power from the DC bus, due to load changes, to stabilize the DC voltage on the DC bus.
A power generation system, comprising:
- a turbogenerator including a motor/generator and a turbine, said turbogenerator to generate AC power;
- a power controller, electrically coupled to the turbogenerator, including first and second power converters, said first power converter to convert said AC power to DC power on a DC bus, and said second power converter to convert said DC power on said DC bus to an output power to supply a load, said power controller to regulate a speed of the turbine, independent of a DC voltage on the DC bus;
- and
- a capacitor controllably coupled to the DC bus to source power to and sink power from the DC bus, due to load changes, to stabilize the DC voltage on the DC bus.
A power generation system, comprising:
- a turbogenerator including a motor/generator and a turbine, said turbogenerator to generate AC power;
- and
- a power control means, electrically coupled to the turbogenerator, including first, second, and third power converter means and electrochemical capacitor means, said first power converter means to convert said AC power to DC power on a DC bus, and said second power converter means to convert said DC power on said DC bus to an output power to supply a load, said power control means controllably couples said electrochemical capacitor means to the DC bus to source power to and sink power from the DC bus, due to load changes, to stabilize the DC voltage on the DC bus, said power control means to regulate a speed of the turbine, independent of a DC voltage on the DC bus.
Dependencies are inferred from the claim text.