SIMULATION OF TORQUE VARIATIONS IN A DIESEL ENGINE FOR LIGHT HELICOPTERS USING PI CONTROL ALGORITHMS
Paweł MAGRYTA
p.magryta@pollub.plLublin University of Technology (Poland)
https://orcid.org/0000-0002-9654-2909
Grzegorz BARAŃSKI
Lublin University of Technology (Poland)
https://orcid.org/0000-0003-2596-3148
Abstract
This article presents the results of simulation research of a diesel engine for a light helicopter. The simulations were performed using the 1D software AVL Boost RT. The engine model includes elements such as cylinders, turbine, compressor, inlet and outlet valves, ambient environment definition, and fuel injection control strategy. The simulations aimed to evaluate the engine's response to step changes in the main rotor load, both increasing and decreasing power demands. Parameters analyzed included power deviation, torque, engine rotational speed, and stabilization time of the main rotor rotational speed. All tests were conducted using a single set of PI controller settings. The results demonstrate that these parameters are dependent on the magnitude of the step change in the main rotor load demand. The study compares the maximum engine rotational speed deviation from the nominal value for both increasing and decreasing main rotor load demands. The findings indicate that using PI regulator to control rotational speed in the diesel engine in a light helicopter significantly depends on the change in the load torque on the rotor.
Keywords:
Diesel engine, PI control, algorithm, speed regulation, helicopter propulsionReferences
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Authors
Paweł MAGRYTAp.magryta@pollub.pl
Lublin University of Technology Poland
https://orcid.org/0000-0002-9654-2909
Authors
Grzegorz BARAŃSKILublin University of Technology Poland
https://orcid.org/0000-0003-2596-3148
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