Design and Simulation of a Selector Controller to Control a Micro-Turbofan Engine in Flight Mission

Document Type : Original Article

Author

assistant professor.Bu-Ali Sina University, Hamedan, Iran

Abstract

Microjet engines are widely used as propulsion system for aerial vehicles. The conversion of these engines into the form of micro-turbofan engines has received attention in recent years. This is due to improvement of specific fuel consumption and increasing the flight endurance and range of the aerial system. An important issue in achieving micro-turbofan engines is the development of a control system to control thrust value and engine limitations using the facilities and equipment of the baseline microjet engine. In the current paper, a controller with a selector structure is designed for a single-spool micro-turbofan engine. Considering that the controller must have an effective performance in providing thrust and maintaining constraints in flight conditions, a comprehensive flight mission is defined for the engine. In the flight mission, the throttle degree, Mach number and altitude are changed and the engine behavior is simulated for two ambient temperatures. The simulation results of the proposed controller are compared with the PI controller. Although the PI controller follows the thrust command, it exceeds the engine speed constraint by 4% and the exhaust gas temperature constraint by 6.7%. While the selector controller, in addition to providing the thrust command, protects the engine constraints in flight conditions.

Keywords

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References

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Fluid Mechanics & Aerodynamics
Volume 13, Issue 2 - Serial Number 33
Autumn and winter 2024
November 2024
Pages 163-172

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History

  • Receive Date: 31 July 2024
  • Revise Date: 21 September 2024
  • Accept Date: 05 November 2024
  • Publish Date: 01 December 2024

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