SYSTEM AND METHOD FOR ENGINE TURN DOWN BY CONTROLLING COMPRESSION EXTRACTION AIR FLOW

摘要

PROBLEM TO BE SOLVED: To provide systems and methods for controlling compressor extraction air flows from a compressor of a turbine system during engine turn down.

SOLUTION: A method includes a control unit (130) monitoring one or more operating parameters of a turbine system (100) associated with an exit temperature of a combustor (110) of the turbine system (100). The method further includes the control unit (130) detecting one or more operating parameters meeting or exceeding a threshold associated with a decrease in the exit temperature of the combustor. In response to detecting one or more operating parameters meeting or exceeding the threshold, a control signal is transmitted to at least one variable orifice (125) located in the turbine system for causing at least one variable orifice to alter at least one extraction air flow from the compressor (105).

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