TURBOPROPELLER ENGINE CONTROL SYSTEM AND METHOD, PROVIDING OPTIMIZED EFFICIENCY

摘要

An electronic control system (30) for a turbopropeller engine (1) having a gas turbine (2, 4, 5, 6) and a propeller (7), coupled to the gas turbine, the control system (10) having a propeller control unit (14) and a turbine control unit (15) to jointly control engine power output based on an input request (PLA), wherein the propeller control unit (14) has a first reference generator (16), to determine a reference propeller speed (N_pref) based on the input request (PLA), and a first regulator (19), to regulate a propeller speed (N_p). The propeller control unit (14) has a reference correction stage (31) to apply a correction to the reference propeller speed (N_pref) and generate thereby a corrected reference propeller speed (I), and the first regulator (19) regulates the propeller speed (N_p) based on the corrected reference propeller speed (I) to achieve optimized efficiency.