| 摘要 |
A method for operating a firing plant with at least one combustion chamber and with at least one burner for producing hot gas, especially a gas turbine, preferably of a power generating plant, includes an operating characteristic for operating the combustion chamber close to the lean extinction limit defined in the form of a burner group staging ratio (BGVRich). The pressure pulsations (PulsActual) which are measured in the combustion chamber are processed by a filter device (2) and converted into corresponding signals (PulsActual,Filter(t)). An exceeding/falling short of at least one pulsation limiting value (PulsLimit) is monitored by a monitoring device (3) and adapts a pulsation reference value (PulsRef) in dependence upon the monitoring. The processed pressure pulsations (PulsActual,Filter(t)) are then compared with the adapted pulsation reference value (PulsRef,adapt), and, from this, a correction value DeltaBGV is determined, by which the burner group staging ratio (BGVRich) is corrected, and as a result operation of the firing plant close to the lean extinction limit is realized.
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