Back to results
US 2023/0146728 A1Published application
Hybrid fuel cell system for load following and backup in a microgrid and method of operating thereof
AssigneeBloom Energy Corporation
InventorsPrasad PMSVVSV, Jayakumar KRISHNADASS
Life of this patent
Estimating the term…
Abstract
A method for operating a fuel cell system includes drawing a base level DC electric energy from a first fuel cell of a first type to a combined DC bus, measuring a DC voltage at the combined DC bus, determining whether the DC voltage at the combined DC bus falls short of a DC voltage threshold, and drawing a variable DC electric energy from a second fuel cell of a second type different from the first type in response to determining that the DC voltage at the combined DC bus falls short of the DC voltage threshold.
Claims20
A fuel cell system, comprising:
- a first fuel cell of a first type;
- a second fuel cell of a second type different from the first type;
- a first direct current (DC)/DC converter electrically connected to the first fuel cell via a first DC bus;
- a second DC/DC converter electrically connected to the second fuel cell via a second DC bus;
- and
- a DC/alternating current (AC) inverter electrically connected in parallel to the first DC/DC converter and to the second DC/DC converter via a combined DC bus.
3 more elements
A method for operating a fuel cell system, comprising:
- drawing a base level direct current (DC) electric energy from a first fuel cell of a first type to a combined DC bus;
- measuring a DC voltage at the combined DC bus;
- determining whether the DC voltage at the combined DC bus falls short of a DC voltage threshold;
- and
- drawing a variable DC electric energy from a second fuel cell of a second type different from the first type in response to determining that the DC voltage at the combined DC bus falls short of the DC voltage threshold.
2 more elements
Dependencies are inferred from the claim text.