航空学报2025，Vol.46Issue(12)：97-112,16.DOI:10.7527/S1000-6893.2024.31092
基于改进DDPG的宽速域几何可调燃烧室压力分布控制
Improved DDPG-based multipoint pressure distribution control of variable geometry scramjet combustor at wide range velocities
摘要
Abstract
Generally,the variable geometry combustor can ensure suitable performance of scramjets.However,its multivariate and strong coupling characteristics make it difficult to develop high-performance control algorithms,and also become an intractable problem hindering the development of the scramjet field.To solve the contradiction be-tween control design and mechanical coupling,this paper firstly proposes a multipoint fuel injection structure for the conventional variable geometry combustor.The newly proposed structure can provide more operable inputs,thereby ensuring a theoretical ability to improve the system performance.On the basis of the multipoint fuel injection structure,a new LSTM/DDPG-based control scheme is proposed to solve the problem of distributed pressure control in the case of supersonic combustion.This scheme can effectively improve the potential performance of the scramjet at wide range velocities and in long flight time.The effectiveness of the proposed scheme is then verified with the simulation results,i.e.,the LSTM/DDPG-based control scheme can significantly optimize the combustion performance of vari-able geometry combustor under different operating conditions.Finally,the applicability of the proposed scheme is vali-dated on the Hardware-In-the-Loop(HIL)simulation platform,and the pressure distribution can be effectively con-trolled at different expansion ratios.The high-accuracy control of multipoint pressure distribution at wide range veloci-ties for the variable geometry combustor is shown to be realized.关键词
几何可调燃烧室/超声速燃烧/硬件在环仿真/深度强化学习/多点压力分布控制Key words
variable geometry combustor/supersonic combustion/hardware-in-the-loop/deep reinforcement learn-ing/multipoint pressure distribution control分类
航空航天引用本文复制引用
凌文辉,牟春晖,聂聆聪,杜宪,孙希明..基于改进DDPG的宽速域几何可调燃烧室压力分布控制[J].航空学报,2025,46(12):97-112,16.基金项目
冲压发动机技术全国重点实验室项目(WDZC6142703202402) National Key Laboratory Project on Ramjet Engine Technology of China(WDZC6142703202402) （WDZC6142703202402）
