A new schedule method for compact propulsion system model-Reference-Cited by-同舟云学术

A new schedule method for compact propulsion system model

Published:2024-02-09 Issue: Volume: Page:
ISSN:0334-0082
Container-title:International Journal of Turbo & Jet-Engines
language:en
Short-container-title:

Author:

Bai Yu¹,Zhu Zhengchen¹,Xu Zhigui¹,Guo Haoran²

Affiliation:

1. AECC Aero Engine Control System Institute , Wuxi 214063 , China

2. Jiangsu Province Key Laboratory of Aerospace Power System , Nanjing University of Aeronautics and Astronautics , Nanjing 210016 , China

Abstract

Abstract The PSC (Performance Seeking Control) based on CPSM (Compact Propulsion System Model) has been verified by NASA. However, the CPSM has poor accuracy at off-design points. Therefore, a new basepoint schedule method is proposed to improve the CPSM accuracy at off-design points. At the off-design point, the thermodynamic parameters which is a function of temperature is an importance factor that influence the accuracy of model based on parameter corrections. Therefore, the temperature of fan inlet is taken into account during scheduling the basepoint vector. The simulations have shown that the accuracy of CPSM is at its best when the engine operates at a point where the temperature of the fan inlet is equal to the one of the basepoint. With the increase or decrease of the temperature of the fan inlet, the modeling errors of CPSM will increase. The simulations also demonstrate that the relative errors of the improved CPSM decrease significantly compared to those of the conventional CPSM at the off-design point.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/tjj-2023-0099/pdf

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