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The present invention relates to a method and a device for affecting thermoacoustic oscillations in a combustion system (i) comprising at least one burner (2) and at least one combustor (3), modulated injection of fuel being carried out. In order to improve the action of affecting the thermoacoustic

The present invention relates to a method and a device for affecting thermoacoustic oscillations in a combustion system (i) comprising at least one burner (2) and at least one combustor (3), modulated injection of fuel being carried out. In order to improve the action of affecting the thermoacoustic oscillations, the modulated injection of the fuel is carried out into a recirculation zone (7) which forms in the combustor (3).

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What is claimed is: 1. A method of affecting thermoacoustic oscillations in a combustion system having at least one burner and at least one combustor, the method comprising: modulating fuel injection into a recirculation zone which forms in the combustor, wherein the total quantity of fuel injectio

What is claimed is: 1. A method of affecting thermoacoustic oscillations in a combustion system having at least one burner and at least one combustor, the method comprising: modulating fuel injection into a recirculation zone which forms in the combustor, wherein the total quantity of fuel injection comprises a first quantity and a second quantity; injecting the first quantity of fuel at a constant rate; and injecting the second quantity of fuel in a modulated manner. 2. The method as claimed in claim 1, wherein the second quantity of fuel is smaller than the first quantity of fuel. 3. The method as claimed in claim 1, wherein the second quantity of fuel is approximately between 6% and 1% of the total quantity of fuel. 4. A method of affecting thermoacoustic oscillations in a combustion system having at least one burner and at least one combustor, the method comprising: modulating fuel injection into a recirculation zone which forms in the combustor, wherein said modulating fuel injection is performed independently of an oscillation phase of the thermoacoustic oscillations. 5. A method of affecting thermoacoustic oscillations in a combustion system having at least one burner and at least one combustor, the method comprising: modulating fuel injection into a recirculation zone which forms in the combustor, wherein said modulating fuel injection is coupled to an oscillation phase of the thermoacoustic oscillations. 6. A method of affecting thermoacoustic oscillations in a combustion system having at least one burner and at least one combustor, the method comprising: modulating fuel injection into a recirculation zone which forms in the combustor, wherein said modulating fuel injection is performed exclusively into the recirculation zone. 7. A method of affecting thermoacoustic oscillations in a combustion system having at least one burner and at least one combustor, the method comprising: modulating fuel injection into a recirculation zone which forms in the combustor, wherein said injection of fuel into the recirculation zone is performed exclusively in a modulated manner.