This demo presents a model of simulation of a RAT (Ram Air Turbine) system used as emergency power system in an aircraft. Electrical, mechanical and hydraulic components are modeled respectively with SimPowerSystems, SimHydraulics and SimMechanics. The advantage of a model spanning different physical domains is to have on overview of basic interactions between all the major components. It is most useful in the early stage of the design of a future system, in this case an hybrid emergency system for the more electrical aircraft.
The power system is composed from a wind turbine (15 kW) connected to an electrical synchronous generator. The shaft of the turbine is also connected to a pump that supplies a hydraulic circuit linked through a servo valve to a cylinder. The motion of the rod is transformed into rotational movement on the axis of the Aileron. A position controller is used so that the deflection angle tracks a given reference by controlling the servo valve.
The authors of this work are: Martin Gendrin, Jean-François Doyon, Daniel Bérubé, Louis A. Dessaint from École de Technologie Supérieure in Montréal with the participation of François Pelletier from Bombardier Aeronautics.
Souléman Njoya Motapon made the R14a version
Pierre Mercier (2023). Emergency power system for a more electrical aircraft (https://www.mathworks.com/matlabcentral/fileexchange/46897-emergency-power-system-for-a-more-electrical-aircraft), MATLAB Central File Exchange. Retrieved .
MATLAB Release Compatibility
Platform CompatibilityWindows macOS Linux
- Physical Modeling > Simscape Multibody > Multibody Modeling >
- Industries > Energy Production > Wind Power >
- Aerospace > Aerospace Blockset > Guidance, Navigation, and Control (GNC) >
- Physical Modeling > Simscape Electrical > Electrical Block Libraries > Electromechanical >
- Engineering > Mechanical Engineering > Hydraulics and Pneumatics >
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