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US 9,822,710 B2Granted
Combustion device with pulsed fuel split
AssigneeSiemens Aktiengesellschaft
InventorsGavin Brickwood, Ghenadie Bulat
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Abstract
It is described a combustion device control unit and a combustion device, e.g. a gas turbine, which determine on the basis of at least one operating parameter whether the combustion device is in a predefined operating stage. In response hereto, there is generated a control signal configured for setting a ratio of at least two different input fuel flows to a predetermined value (psc1, psc3) for a predetermined time (dt) in case the combustion device is in the predefined operating stage.
Claims6
A control unit of a combustion device, comprising:
- a control input for receiving at least one operating parameter indicating an operation of the combustion device;
- and
- a control output for outputting a control signal for controlling at least two different input fuel flows to the combustion device;
- wherein the control unit is configured to determine whether the combustion device is in a predefined operating stage based on the at least one operating parameter,
- wherein the control unit is configured to generate the control signal to set a ratio of the at least two different input fuel flows to a predetermined value for a predetermined time in case the combustion device is in the predefined operating stage,
- wherein the ratio of the at least two different input fuel flows is set to the predetermined value by changing the ratio of the at least two different input fuel flows from a present value to the predetermined value in a stepwise manner, and
- wherein the ratio of the at least two different input fuel flows is set to the predetermined value for the predetermined time comprising a pulse shaped temporal change of the ratio of the at least two different input fuel flows.
4 more elements
Dependencies are inferred from the claim text.