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CONTROL SYSTEM AND METHOD FOR PROPELLER-SPEED OVERSHOOT LIMITATION IN A TURBOPROPELLER ENGINE
CONTROL SYSTEM AND METHOD FOR PROPELLER-SPEED OVERSHOOT LIMITATION IN A TURBOPROPELLER ENGINE
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机译:涡轮螺旋桨发动机螺旋桨速度超限的控制系统和方法
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摘要
An electronic control system (35) for a turbopropeller (2) having a gas turbine engine (20) and a propeller assembly (3) coupled to the gas turbine engine (20), the control system (35) having: a propeller control stage (35a), implementing a closed loop control for controlling operation of the propeller assembly (3) based on a scheduled propeller speed reference (Nrref) and a propeller speed measure (Nr); a gas turbine control stage (35b), implementing a closed loop control for controlling operation of the gas turbine engine (20) based on a scheduled reference (Ngdotref) and at least a feedback quantity. The control system (35) further envisages an auxiliary control stage (35c), coupling the propeller control stage (35a) and the gas turbine control stage (35b) and determining a limitation of the operation of the gas turbine engine (20), if a propeller speed overshoot is detected, with respect to the propeller speed reference (Nrref).
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