Active Jet Noise Control of Turbofan Engine Based on Explicit Model Predictive Control

被引:2
|
作者
Ji, Runmin [1 ]
Huang, Xianghua [1 ]
Zhao, Xiaochun [1 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Nanjing 210016, Peoples R China
来源
APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 10期
基金
中国国家自然科学基金;
关键词
turbofan engine; jet noise; active control; explicit model predictive control; binary search;
D O I
10.3390/app12104874
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The active jet noise control received significant attention due to the little influence it has on the engine performance. The active jet noise control is a multivariable problem because it needs to achieve the simultaneous closed-loop control of jet noise and engine performance. Model predictive control (MPC) has great application potentials in the field of multivariable control of aero-engines, but the real-time performance of MPC is intractable. This paper proposed an active jet noise controller of a turbofan engine, based on explicit model predictive control (EMPC). An integrated model of turbofan engine and jet noise, which calculates the engine parameters and jet noise in real time, was established. The online computational burden of MPC was transferred to offline computation using multi-parametric quadratic programming (MPQP). To improve the efficiency of the online positioning algorithm, the sequence search method was replaced by a binary search tree. Step simulations were performed to test the effectiveness of the proposed controller. The results show that the proposed EMPC controller not only achieves the simultaneous control of jet noise and the turbofan engine, but also improve the real-time performance greatly.
引用
收藏
页数:19
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