Patent ID: 7424360

Claim:
A turbine engine overspeed control system for use with a gas turbine engine of a gas turbine electric powerplant, comprising: a first overspeed control subsystem operational to rapidly transfer combustion air from within said gas turbine engine to a location outside of said gas turbine engine; a second overspeed control subsystem operational to alter a flow of incoming air in a manner that produces a reduction in turbine engine compressor efficiency; one or more sensors for determining an overspeed condition of said gas turbine engine; and control software in communication with said one or more sensors, said control software operative to transmit an activation signal to said first and/or second overspeed control subsystem in response to receipt of an overspeed signal from said one or more sensors; wherein, upon activation, said first and/or second overspeed control subsystem operates to rapidly reduce the rotational speed of said gas turbine engine.