PSO-Fuzzy-PID复合控制器在喉栓调节发动机压强控制中的应用  

Application of Fuzzy-PID composite controller based on PSO in pintle adjustment engine pressure control

作　　者：高潇 王庆辉 薛智慧 刘金国[2,3] GAO Xiao;WANG Qinghui;XUE Zhihui;LIU Jinguo(College of Information Engineering,Shenyang University of Chemical Technology,Shenyang 110412,China;State Key Laboratory of Robotics,Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110016,China;Institutes for Robotics and Intelligent Manufacturing,Chinese Academy of Sciences,Shenyang 110169,China)

机构地区：[1]沈阳化工大学信息工程学院,辽宁沈阳110412 [2]中国科学院沈阳自动化研究所机器人学国家重点实验室,辽宁沈阳110016 [3]中国科学院机器人与智能制造创新研究院,辽宁沈阳110169

出　　处：《推进技术》2024年第7期269-278,共10页Journal of Propulsion Technology

基　　金：国家重点研发计划(2018YFB1304600);国家自然科学基金(51775541)。

摘　　要：为了改善喉栓调节发动机的燃烧室内压强控制系统的性能,实现精确闭环控制,建立了系统的数学模型,并在此基础上提出了一种基于粒子群优化(Particle Swarm Optimization,PSO)算法的Fuzzy-PID复合控制器(PSO-Fuzzy-PID)。由于模型具有较强的时变性、扰动性以及非线性,传统的PID控制器无法精确控制,因此设计并使用PSO-Fuzzy-PID复合控制器。Fuzzy控制器和PID控制器同时工作,采用PSO算法对Fuzzy控制器和PID控制器的输出比例因子进行优化。通过仿真对比了PSOFuzzy-PID复合控制器、Fuzzy-PID双模控制器和传统PID控制器在系统的工作点(6 MPa)附近的阶跃跟踪、时变性测试以及在非线性模型中的抗干扰性测试、长时间全压强范围调节测试,来验证控制器的动态性能。结果表明:在不同的实验中,PSO-Fuzzy-PID复合控制器均表现出明显的优势。该控制器可以将超调量控制在10%以内;将调节时间控制在1.5 s以内,将压强的调节速度提高至Fuzzy-PID双模控制器的3.45~6.73倍,传统PID控制器的4.51~7.1倍。因此PSO-Fuzzy-PID复合控制器在响应速度、超调量、鲁棒性强等方面更具优势,显著地提高了喉栓调节发动机的燃烧室内压强控制系统的动态性能。In order to improve the performance of the pressure control system in the combustion chamber of the pintle adjustment engine and realize accurate closed-loop control,the mathematical model of the system was established,and a Fuzzy-PID compound controller based on the Particle Swarm Optimization(PSO)algorithm was proposed.The traditional PID controller could not be accurately controlled because the model has substantial time variability,perturbation and is nonlinear.Therefore,PSO-Fuzzy-PID composite controller was designed and used.The fuzzy controller and PID controller worked at the same time.PSO algorithm was used to optimize and update the output scale factor of the two controllers in real-time.The PSO-Fuzzy-PID composite controller,Fuzzy-PID dual-mode controller and traditional PID controller were compared by simulation in the step tracking and the time variability test near the operating point of the system(6 MPa),and the anti-interference test and the long time full pressure range adjustment test in the nonlinear model to verify the dynamic performance of the con-troller.The results indicate that the PSO-Fuzzy-PID composite controller exhibits significant advantages in differ-ent experiments.The overshoot can be controlled within 10%.The adjustment time can be controlled within 1.5 s,and the pressure adjustment speed can be increased to 3.45~6.73 times that of the Fuzzy-PID dual-mode control-ler and 4.51~7.1 times that of the traditional PID controller.Therefore,the PSO-Fuzzy-PID composite controller has more advantages in response speed,overshoot,and strong robustness and significantly improves the dynamic performance of the pressure control system in the combustion chamber of the pintle adjustment engine.

关 键 词：喉栓调节发动机 复合控制器 压强控制 非线性控制 时变性 

分 类 号：V435.5[航空宇航科学与技术—航空宇航推进理论与工程]