Protecting gas turbine against pressure pulsation damage involves monitoring pulsation level in pulsation frequency band for at least one triggering condition, carrying out predefined protective action if triggering condition(s) occurs

摘要

The method involves monitoring a pulsation level (PL) in a pulsation frequency band in respect of the occurrence of at least one triggering condition and carrying out a predefined protective action (16) if at least one triggering condition occurs. The at least one triggering condition has a triggering strategy that operates with a triggering counter (AZ) and a reset counter (RZ). An independent claim is also included for a control system for a gas turbine.