Next Article in Journal
Flexible Options for Greenhouse Gas-Emitting Energy Producer
Previous Article in Journal
Effect of Vertical Metal Plate on Transfer Efficiency of the Wireless Power Transfer System
Open AccessArticle

A Novel Real-Time Mechanism Modeling Approach for Turbofan Engine

Jiangsu Province Key Laboratory Power Systems, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
*
Author to whom correspondence should be addressed.
Energies 2019, 12(19), 3791; https://doi.org/10.3390/en12193791
Received: 9 September 2019 / Revised: 26 September 2019 / Accepted: 28 September 2019 / Published: 7 October 2019
(This article belongs to the Section Energy Fundamentals and Conversion)
Nonlinear component level model (NCLM) is a widely used model for aeroengines. However, it requires iterative calculation and is, therefore, time-consuming, which restricts its real-time application. This study aims at developing a simplified real-time modeling approach for turbofan engines. A mechanism modeling approach is proposed based on linear models to avoid the iterative calculation in NCLM so as to effectively reduce the computational complexity. Linear local models, of which the outputs are the solution of the balance equations in NCLM, are established at the ground operating points and are combined into a linear parameter varying (LPV) state-space model. Then, the model is extended throughout the full flight envelope in a polytopic expression and is integrated with the flow path calculation to obtain satisfactory real-time performance. In order to ensure the accuracy of the integrated model, the upper bound of convergence residual of the iteration is strictly set and consideration on the interpolation method is taken. The simulation results demonstrate that the integrated model requires much less computational resources than the NCLM does. Meanwhile, it maintains an acceptable accuracy performance and, therefore, is suitable for real-time application. View Full-Text
Keywords: turbofan engine; nonlinear component level model; linear parameter varying model; real-time model turbofan engine; nonlinear component level model; linear parameter varying model; real-time model
Show Figures

Figure 1

MDPI and ACS Style

Chen, Q.; Huang, J.; Pan, M.; Lu, F. A Novel Real-Time Mechanism Modeling Approach for Turbofan Engine. Energies 2019, 12, 3791.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop