High-Reliability Electric Power Generation System for Aircraft Based on Generators Smart Droop Control Method

Subject Areas : Renewable energy

Amir Khaledian ¹ (Department of Electrical Engineering- Technical and Vocational University, Tehran, Iran)

Received: 2021-08-30 Accepted : 2021-11-20 Published : 2021-12-22

Keywords: reliability, Microgrid, Aircraft Electrical System, Droop Control, Smart Power Sharing,

Abstract :

Advances in power electronic applications, high reliability power distribution systems and flight control propulsion technologies, have increased the utilization of electric power in modern aircrafts. This has led to the concept of more electric aircraft. In this paper, a new structure is proposed to generate the electric power in aircraft. The aircraft power generation and consumption system is modeled as a microgrid. The proposed more-reliable power generation system is based on induction generator, rectifier and voltage source inverter. Induction generator is coupled with turbojet motor. The smart active power sharing between generators is achieved by using improved droop control method. Optimal droop coefficients are assigned by combining mathematical approaches including descending gradient method and minimizing the mean squares of the frequency deviation. The aircraft electrical network is simulated with the proposed controller in MATLAB and its performance is analyzed. The simulation results show the proper power sharing between generators. The advantages of the proposed method over the conventional structure include the elimination of the mechanical constant speed drive which increase reliability and proper power sharing.

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