FAST-ACTING ANTI-SURGE SYSTEM OF GAS TURBINE ENGINE
Annotation
The factors affecting the occurrence of unstable modes of operation of a gas turbine engine (GTE) associated with the rate of change of the flow surge are examined. The problem of surge diagnostic system performance is considered. Several options are proposed to improve the performance of systems, diagnosing the GTE surge. Modeling of anti-surge system operation is performed with the use of simulation of majoritarian diagnostics of pre-damping state and surge. Results of the simulation study demonstrate that the use of the first derivative of operating parameters reduces the time of diagnosis for 40-120 ms, depending on operation mode and is beneficial to the whole system performance.
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