Research Papers: Gas Turbines: Controls, Diagnostics, and Instrumentation

Thrust Control of Small Turbojet Engines Using Fuzzy Logic: Design and Experimental Validation

[+] Author and Article Information
Riccardo Amirante

e-mail: amirante@poliba.it

Luciano Andrea Catalano

e-mail: catalano@poliba.it

Paolo Tamburrano

e-mail: p.tamburrano@poliba.it
Politecnico di Bari–DIMeG,
Bari, Italy

1Corresponding author.

Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 13, 2012; final manuscript received July 20, 2012; published online October 25, 2012. Editor: Dilip R. Ballal.

J. Eng. Gas Turbines Power 134(12), 121601 (Oct 25, 2012) (7 pages) doi:10.1115/1.4007372 History: Received July 13, 2012; Revised July 20, 2012

The aim of this paper is to propose an effective technique which employs a proportional-integral Fuzzy logic controller for the thrust regulation of small scale turbojet engines, capable of ensuring high performance in terms of response speed, precision and stability. Fuzzy rules have been chosen by logical deduction and some specific parameters of the closed loop control have been optimized using a numerical simulator, so as to achieve rapidity and stability of response, as well as absence of overshoots. The proposed Fuzzy logic controller has been tested on the Pegasus MK3 microturbine: the high response speed and precision of the proposed thrust control, revealed by the simulations, have been confirmed by several experimental tests with step response. Its stability has been demonstrated by means of the frequency response analysis of the system. The proposed thrust control technique has general validity and can be applied to any small-scale turbojet engine, as well as to microturbines for electricity production, provided that thrust being substituted with the net mechanical power.

Copyright © 2012 by ASME
Your Session has timed out. Please sign back in to continue.


Carnö, J., Cavani, A., and Liinanki, L., 1998, “Micro Gas Turbine for Combined Heat and Power in Distributed Generation,” ASME Paper No. 98-GT-309.
Jacobson, S. A., 1998, “Aerothermal Challenges in the Design of a Microfabricated Gas Turbine Engine,” AIAA Paper No. 98-2545.
Morino, L., Bernardini, G., and Mastroddi, F., 2006, “Multi-Disciplinary Optimization for the Conceptual Design of Innovative Aircraft Configurations,” CMES Comput. Model. Eng. Sci., 13(1), pp. 1–18. [CrossRef]
Rodgers, C., 2000, “25-5 kWe Microturbine Design Aspects,” Proceedings of ASME Turbo Expo 2000, Munich, Germany, May 8–11, ASME Paper No. GT2000-0626.
Decuypere, R., and Verstraete, D., 2005, “Micro Turbines from the Standpoint of Potential Users,” (RTO-AVT VKI Lecture Series on Micro Gas Turbines, Neuilly-sur-Seine, France, Educational Notes RTO-EN-AVT-131, Paper 15), Rhode-St-Genèse, Belgium, May 14–18, 2004.
Fernandez-Pello, A. C., 2002, “Micro-Power Generation Using Combustion: Issues and Approaches,” Proceedings of the Twenty-Ninth International Symposium on Combustion, Sapporo, Japan, July 21–26.
Guidez, J., Dumand, C., Courvoisier, T., and Orain, M., 2005, “Specific Problems of Micro Gas Turbine for Micro Drones Application,” ISABE 2005, 17th Symposium on Air Breathing Engines, Munich, Germany, September 4–9.
Guidez, J., Ribaud, Y., Dessornes, O., and Dumand, C., 2004, “Micro Engines for Micro-Drones Propulsion,” 4th European Micro UAV Meeting, Toulouse, France, September 15–17.
Hamilton, S. L., 1999, “Microturbines Poised to Go Commercial,” Mod. Power Syst., 19(9), pp. 21–22.
Hendrik, P., Verstraete, P., and De Bruyn, N., 2004, “An Ultra Micro Gas Turbine Intended for MAV Propulsion,” 7th International UAV Conference, 2004, Bristol, UK.
Watts, J. H., 1999, “Microturbines: A New Class of Gas Turbine Engine,” Global Gas Turbine News, Proceedings of ASME-IGTI, 39(1), pp. 4–8.
Sanchez, E. N., Becerra, H. M., and Velez, C.M., 2007, “Combining Fuzzy, PID and Regulation Control for an Autonomous Mini-Helicopter,” Information Sciences, 177(10), pp. 1999–2022. [CrossRef]
Lin, F. J., and Chiu, S. L., 1998, “Adaptive Fuzzy Sliding Mode Control for PM Synchronous Servo Motor Drives,” IEE Proc.: Control Theory Appl., 145(1), pp. 63–72. [CrossRef]
Akpolat, Z. H., 1999, “Application of Fuzzy-Sliding Mode Control and Electronic Load Emulation to the Robust Control of Motor Drives,” Ph.D. dissertation, University of Nottingham, Nottingham, UK.
Driankov, D., Hellendoorn, H., and Reinfrank, M., 2001, An Introduction to Fuzzy Control, Narosa Publishing House, New Delhi.
AmiranteR., Catalano, L. A., and Tamburrano, P., 2010, “An Adaptive Fuzzy Logic Algorithm for the Thrust Control of a Small Turbojet Engine,” ASME Turbo Expo 2010: Power for Land, Sea and Air, Glasgow, UK, June 14–18, ASME Paper No. GT2010-22510, pp. 369–377. [CrossRef]
Amirante, R., Catalano, L. A., Dadone, A., and Daloiso, V. S. E., 2007, “Design Optimization of the Intake of a Small–Scale Turbojet Engine,” Comput. Model. Eng. Sci., 18(1), pp. 13–30. [CrossRef]
Dubois, D., and PradeH., 1997, Fuzzy Sets and Systems: Theory and Applications, Academic, New York.
Gottwald, S., 1993, Fuzzy Sets and Fuzzy Logic, Vieweg, Braunschweig, Germany.
Åström, K. J., and Hgglund, T., 1995, PID Controllers: Theory, Design and Tuning, Instrument Society of America, Research Triangle Park, NC.


Grahic Jump Location
Fig. 2

Thrust control system

Grahic Jump Location
Fig. 3

Fuzzy sets designed for the error, the error variation and the tension variation

Grahic Jump Location
Fig. 4

Example of Fuzzyfication

Grahic Jump Location
Fig. 5

Simulated turbojet engines

Grahic Jump Location
Fig. 6

Time history of thrust and tension variation for the curve T1

Grahic Jump Location
Fig. 7

Time history of thrust and tension variation for the curve T2

Grahic Jump Location
Fig. 8

Time history of thrust (frequency = 0.2 Hz)

Grahic Jump Location
Fig. 9

Time history of thrust (frequency = 0.4 Hz)

Grahic Jump Location
Fig. 10

Bode plot of the Fuzzy closed-loop control system

Grahic Jump Location
Fig. 11

Time history of thrust (1st test)

Grahic Jump Location
Fig. 12

Recorded thrust for U = 2 V

Grahic Jump Location
Fig. 13

Time history of thrust (2nd test)

Grahic Jump Location
Fig. 14

Time history of thrust (3rd test)

Grahic Jump Location
Fig. 15

Time history of thrust (4th test, comparison between Fuzzy and standard PI controllers)

Grahic Jump Location
Fig. 16

Time history of thrust (5th test, comparison between Fuzzy and standard PI controllers)




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In