一种变旋翼转速直升机/涡轴发动机非线性模型预测控制方法研究

doi:10.13675/j.cnki. tjjs. 180590

推进技术 ›› 2019, Vol. 40 ›› Issue (10): 2334-2342.DOI: 10.13675/j.cnki. tjjs. 180590

一种变旋翼转速直升机/涡轴发动机非线性模型预测控制方法研究

汪勇¹,张海波¹,杜紫岩¹,陈名扬¹,叶东鑫¹

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室

发布日期:2021-08-15
作者简介:汪勇，男，博士生，研究领域为航空发动机建模及控制。E-mail：wangyong199427@163.com
基金资助:
国家自然科学基金 51576096;中央高校科研业务费重大人才培育项目 NF2018003;中央高校基本科研业务费 NZ2016103国家自然科学基金（51576096）；中央高校科研业务费重大人才培育项目（NF2018003）；中央高校基本科研业务费（NZ2016103）。

A Novel Nonlinear Model Predictive Control Method for Helicopter /Turboshaft Engine with Variable Rotor Speed

Jiangsu Province Key Laboratory of Aerospace Power System,College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

Published:2021-08-15

摘要/Abstract

摘要： 为了实现变旋翼转速直升机/涡轴发动机快速响应控制，提出了一种基于神经网络的直升机旋翼预测模型与基于状态变量模型的涡轴发动机预测模型的新型非线性模型预测控制方法。所建目标函数除了包含转速控制指标外，还考虑了经两级变速双离合器传动机构传扭后发动机输出轴的转子动力学特性。不同飞行任务下的数值仿真结果表明：相对于PID控制器而言，非线性模型预测控制器可在满足压气机转速、发动机静强度等限制条件下使动力涡轮转速在变旋翼转速过程中的超调量减小50%，下垂量降至0.2%以内，实现了涡轴发动机的快速响应控制的同时，有利于改善发动机使用寿命。

关键词: 直升机;涡轴发动机;变旋翼转速;快速响应控制;非线性模型预测控制

Abstract: In order to realize the fast response control of the integrated helicopter/turboshaft engine system with variable rotor speed, a novel nonlinear model predictive control (NMPC) method based on the prediction model of helicopter rotor obtained through neural network and the prediction model of turboshaft engine based on state variable model is proposed. In addition to the control index of power turbine speed, the objective function designed also takes into account the rotor dynamics characteristics of the engine output shaft with torque transmitted through the two-speed dual clutch transmission (DCT). The simulation results under different flight mission show that compared with the PID controller, the NMPC can reduce the overshoot of power turbine speed by 50% and decrease the droop to less than 0.2% during variable rotor speed under the premise of meeting the constraint conditions such as the compressor speed and static strength. It can not only realize the rapid response control, but also extend the service life of the turboshaft engine.

Key words: Helicopter;Turboshaft Engine;Variable rotor speed;Fast response control;Nonlinear model predictive control

汪勇,张海波,杜紫岩,陈名扬,叶东鑫. 一种变旋翼转速直升机/涡轴发动机非线性模型预测控制方法研究[J]. 推进技术, 2019, 40(10): 2334-2342.

WANG Yong¹,ZHANG Hai-bo¹,DU Zi-yan¹,CHEN Ming-yang¹,YE Dong-xin¹. A Novel Nonlinear Model Predictive Control Method for Helicopter /Turboshaft Engine with Variable Rotor Speed[J]. Journal of Propulsion Technology, 2019, 40(10): 2334-2342.

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一种变旋翼转速直升机/涡轴发动机非线性模型预测控制方法研究

A Novel Nonlinear Model Predictive Control Method for Helicopter /Turboshaft Engine with Variable Rotor Speed

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