Integrated engine management: a new approach to health monitoring and control of gas turbine aero-engines

Abstract

AbstractIntegrated engine management (IEM) is a technique for unifying and improving the control and health monitoring of gas turbine aeroengines by increasing the quality and quantity of information available about the engine's health and performance. The core of the system is a real-time engine simulation whose outputs are compared continuously with those of the real engine. Any differences between the predicted and measured outputs are attributed to inaccuracy in the simulation's component performance parameters (such as the compressor efficiencies) which are continuously trimmed to make the outputs of the simulation track those of the real engine. The result is a real-time simulation whose input-output behaviour matches that of the real engine very closely.