Research on Power Regulation Schedule Control System for Turboprop Engine

Tianqian Xia; Xianghua Huang

doi:10.1515/tjj-2018-0023

Article

Research on Power Regulation Schedule Control System for Turboprop Engine

Tianqian Xia and Xianghua Huang

Published/Copyright: July 27, 2018

Published by

Become an author with De Gruyter Brill

Author Information

From the journal International Journal of Turbo & Jet-Engines Volume 39 Issue 2

Abstract

A method of variable speed control system for turboprop engine is presented in this paper. Firstly, the steady operation state of turboprop engine is analyzed, and the operating line is figured out in the steady state characteristic diagram, which is the design basis of Engine Thrust Management System (ETMS). Secondly, the reference model sliding mode multivariable control is used to design the control law to follow the speed instructions given by ETMS. Finally, the optimization of the minimum fuel consumption operating curve is realized, and the control system designed is applied to a numerical model of a turboprop engine. The simulation results show that compared with the constant speed control system, the variable speed control system can reduce the specific fuel consumption by 2.37 % on average and 3.1 % in steady state conditions. Furthermore, the method can enable the pilot to manipulate the turboprop aircraft by using only one throttle lever, which can greatly reduce the pilot operation burden.

Keywords: turboprop engine; sliding mode control; power regulation schedule; one hand level operation

JEL Classification: 07.07.Tw; 45.80.+r; 87.19.lr

Funding statement: This work was supported by Foundation of Graduate Innovation Center in NUAA (kfjj20170218) and supported by “the Fundamental Research Funds for the Central Universities”. The authors also wish to thank the financial support from the National Natural Science Foundation of China (51576097).

Nomenclature

ETMS: Engine Thrust Management System
PLA: Power Lever Angle
CLA: Condition Lever Angle
FADEC: Full Authority Digital Electronic Control
LQR: Linear Quadratic Regulator
SFC: Specific Fuel Consumption
MRSMC: Model Reference Sliding Mode Controller
W f: fuel flow (kg/s)
φ: pitch angle (rad)
F t arg: target thrust (N)
T t 1: total temperature of atmosphere (K)
T t 2: total temperature of inlet of compressor (K)
n h , g i v e: corrected rotational speed command of the high pressure rotor (rpm)
n l , g i v e: corrected rotational speed command of the low pressure rotor (rpm)
n l , c m d: speed command of the low pressure rotor (rpm)
n p: propeller speed (rpm)
n p , c m d: propeller speed command (rpm)
n p , o p t: optimal propeller speed (rpm)
n h: core engine speed (rpm)
n h , c m d: core engine speed command (rpm)
P: power absorbed by propeller (W)
p c m d: command of power absorbed by propeller (W)

References

1. Chen H, Wang X. Development of turboprop engine control technology in the West [J]. Aeroengine. 2016;42:1–9.Search in Google Scholar

2. Macisaac B, Langton R. Gas turbine propulsion systems [M]. New York: Wiley, 2011:89–122.10.1002/9781119975489.ch4Search in Google Scholar

3. Badger M, Julien A, LeBlanc AD, et al. The PT6 engine: 30 years of gas turbine technology evolution [J]. J Eng Gas Turbine Power. 1994;116:322–30.10.1115/93-GT-006Search in Google Scholar

4. Zickwolf HC, Jr Cole Pratt EF, Hartford WE. Electronic control system for a propfan engine [J]. AIAA/ASME/SAE/ASEE 24th Joint Propulsion Conference. 2000. July 11–13, 1988/Boston, Massachusetts.10.2514/6.1988-3174Search in Google Scholar

5. Chao T, Huang X-H, Deng Z-W. Modeling and simulation research of turboprop engine control technology [J]. J Aerosp Power. 2010;25:2599–605.Search in Google Scholar

6. Sheng H, Zhang T, Zhang Y. Real-time simulation of turboprop engine control system[J]. Int J Turbo Jet Eng. 2017;34:187–97.10.1515/tjj-2015-0066Search in Google Scholar

7. Richter H. Advanced control of turbofan engines [M]. New York: Springer, 2012.10.1007/978-1-4614-1171-0Search in Google Scholar

8. Zhao Q-R. Application of global variable structure colltrol method in aeroengine control system [D]. Xi’an: Northwestern Polytechnical University, 2001.Search in Google Scholar

9. Cai K-L, Xie T-S. Multiple variable fuzzy sliding mode variable structure model tracking control for aeroengine [J]. J Propul Technol. 2008;29:737–42.Search in Google Scholar

10. Považan J, Andoga R, Fȍzȍ L, Judicák J, Madarász L. Introduction to advanced modeling and control of turbo-prop engines [C]. IEEE 16th International Conference on Intelligent Engineering Systems. Lisbon: IEEE Press, 2012:271–7.10.1109/INES.2012.6249843Search in Google Scholar

11. Xiaochun L, Hu W. Principle of aircraft engine [M]. Xi’ an: Northwestern Polytechnic University Press, 2005.Search in Google Scholar

12. Richard CD, Bishop RH. Modern control systems [M]. Englewood: Pearson Prentice Hall, 2004.Search in Google Scholar

13. Liu J. Sliding mode control design and matlab simulation [M]. Beijing: Tsinghua University Press, 1998.Search in Google Scholar

14. Fan D, Zhao Q-R. Application of global variable structure control method in aeroengine control system [J]. J Propul Technol. 2002;23:485–8.Search in Google Scholar

15. Utkin VI, Guldner J, Shi J. Sliding mode control in electro-mechanical systems [M]. Boca Raton: CRC Press, 2009:108.Search in Google Scholar

Received: 2018-07-05

Accepted: 2018-07-12

Published Online: 2018-07-27

Published in Print: 2022-05-25

You are currently not able to access this content.

Articles in the same Issue

https://doi.org/10.1515/tjj-2018-0023

Keywords for this article

turboprop engine; sliding mode control; power regulation schedule; one hand level operation