Development of a modular FADEC for small scale turbojet engine

Beneda, Károly

doi:10.1109/sami.2016.7422981

Cited by 17 publications

(6 citation statements)

References 11 publications

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“…During initial tests the bus speed was limited to 10 kbps, but it has been increased to nearly 200 kbps as the number of messages was increased due to the broadened functionality and larger amount of monitored parameters. The development of this unit was described in more details in [7].…”

Section: Summary Of the Frameworkmentioning

confidence: 99%

“…This unit serves already for more than ten years for research and education purposes. It also features a modular, full authority digital electronic control (FADEC) system, which was previously presented by the author [7]. Due to the experiences with the previous generation of pressure measurement electronics and constantly growing demand for increased number of monitored parameters, a new pressure measuring card was developed.…”

Section: Introductionmentioning

confidence: 99%

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Adevelopment of an Advanced Pressure Signal Acquisition Card for a Modular Turbojet Fadec System

Beneda

2021

Acta Avionica

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Gas turbine engines are very important in aviation. Pressure is one of the key thermodynamic parameters which, first of all, suffers radical change within the flow passage of a gas turbine, on the other hand, there are several accessories like fuel and oil supply, in which the pressure of the working medium is essential. The measurement of this variable is therefore inevitable in data acquisition or engine control systems. The author shows the process of development of an advanced pressure signal acquisition card that fits into a modular electronic control system of a turbojet engine. The unit incorporates numerous experiences gathered with the previous generation of this module regarding power supply and integrated sensors as well. Furthermore, there are several innovations that enable a more efficient installation, data acquisition and built-in test possibilities. The most important difference is the 32-bit ARM Cortex-M0+ microcontroller which allows faster operation which allows the acquisition of more signals, including additional functions as thrust measurement, digital input/output handling and many others. The unit operation was thoroughly assessed using simulated and real operating conditions as well.

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Section: Summary Of the Frameworkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adevelopment of an Advanced Pressure Signal Acquisition Card for a Modular Turbojet Fadec System

Beneda

2021

Acta Avionica

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“…In Table 2, scientometric survey data in the Histcite are shown. As shown in Table 2, the number of articles reviewed in scientometrics is 111, 12…”

Section: Bibliometric and Scientometric Analysismentioning

confidence: 99%

“…In 2016 Beneda published a paper with the goal of describing the “development of a modular FADEC system for a small-scale turbojet engine” covering both research and practical aspects of FADEC design. 12…”

Section: A Historical Review Of Gas Turbine Engine Controlmentioning

confidence: 99%

A scientometric analysis and critical review of gas turbine aero-engines control: From Whittle engine to more-electric propulsion

Mohammadi

Fashandi

Jafari

et al. 2020

Measurement and Control

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The gas turbine aero-engine control systems over the past eight decades have been thoroughly investigated. This review purposes are to present a comprehensive reference for aero-engine control design and development based on a systematic scientometric analysis and to categorize different methods, algorithms, and approaches taken into account to improve the performance and operability of aircraft engines from the first days to present to enable this challenging technology to be adopted by aero-engine manufacturers. Initially, the benefits of the control systems are restated in terms of improved engine efficiency, reduced carbon dioxide emissions, and improved fuel economy. This is followed by a historical coverage of the proposed concepts dating back to 1936. A comprehensive scientometric analysis is then presented to introduce the main milestones in aero-engines control. Possible control strategies and concepts are classified into four distinct phases, including Single input- single output control algorithms, MIN-MAX or Cascade control algorithms, advanced control algorithms, More-electric and electronic control algorithms and critically reviewed. The advantages and disadvantages of milestones are discussed to cover all practical aspects of the review to enable the researchers to identify the current challenges in aircraft engine control systems.

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“…The most safety critical system in any MEA is the FADEC (Full Authority Digital Electronic Control)system that continuously monitors and controls the ignition timing and fuel injection to the aircraft engine. FADEC control and designs have been reported in [4][5][6] with the focus being mainly on safety. Any failure within the FADEC leads to misfiring and loss of fuel injection [7-10] which would result in a catastrophic event, such as the Airbus A 400M crash in 2015 caused by FADEC failure [11].…”

mentioning

confidence: 99%

Forced Commutated Controlled Series Capacitor Rectifier for More Electric Aircraft

Al-Mhana

Pickert

Atkinson

et al. 2019

IEEE Trans. Power Electron.

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Rising power demands in More Electrical Aircraft (MEA) put power converters for commercial airplanes under increasing pressure to fulfill current harmonic distortion regulations as specified, for example, in DO-160G. Today, the implementation of filters is seen as an effective tool for dealing with harmonics, however, their increased weight and volume is not welcomed in the aerospace industry. This paper proposes a circuit, named Forced Commutation Series Capacitor rectifier (FCSC-rectifier), which is able to maintain low individual harmonic current levels without the need for filter components. The FCSC-rectifier includes a variable capacitive line reactance that interacts in a controlled manner with the inductive line impedance. The result is that the converter input current is nearly purely sinusoidal with a power factor of almost unity. The FCSC-rectifier is to be used for stand-alone variable-voltage, variable-frequency generation systems (VFG) and can therefore power the Full Authority Digital Electronic Control System (FADEC) in an MEA. This paper shows that the FCSC-rectifier can maintain a high power factor and acceptable current harmonic levels without the use of filters, despite large voltage and frequency variations. A full description of the circuit modes of operation is presented in this paper together with simulation results showing circuit performance characteristics over a range of voltages and frequencies. Results are experimentally verified using a 1kW test circuit. Index Terms-Forced Commutated controlled Series Capacitor (FCSC), Full Authority Digital Electronic Control System (FADEC), More Electric Aircraft (MEA), current harmonics, power factor. I. INTRODUCTION he complexity of aircraft electrical loads has substantially increased in recent years with the advent of the More Electric Aircraft (MEA) [1-3]. The most safety critical system in any MEA is the FADEC (Full Authority Digital Electronic Control)system that continuously monitors and controls the ignition timing and fuel injection to the aircraft engine. FADEC control and designs have been reported in [4][5][6] with the focus being mainly on safety. Any failure within the FADEC leads to misfiring and loss of fuel injection [7-10] which would result in a catastrophic event, such as the Airbus A 400M crash in 2015 caused by FADEC failure [11]. One major area of concern is radiated and conducted EMI which could interact with the engine control

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Development of a modular FADEC for small scale turbojet engine

Cited by 17 publications

References 11 publications

Adevelopment of an Advanced Pressure Signal Acquisition Card for a Modular Turbojet Fadec System

Adevelopment of an Advanced Pressure Signal Acquisition Card for a Modular Turbojet Fadec System

A scientometric analysis and critical review of gas turbine aero-engines control: From Whittle engine to more-electric propulsion

Forced Commutated Controlled Series Capacitor Rectifier for More Electric Aircraft

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