基于Fuzzy-PI双模控制器的燃气发生器压强控制算法研究
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摘要
为了改善燃气发生器流量调节控制系统的性能,建立了系统的数学模型。针对系统具有较强的非线性和时变性的特点,引入模糊-PI双模控制器对燃气发生器内压强闭环控制,在系统偏差较大时采用模糊控制器,以获得良好的瞬态性能;在系统偏差较小时采用PI控制器,以获得良好的稳态性能。仿真结果表明:模糊-PI双模控制器集模糊控制器与经典PI控制器的优点于一身,在不同的工作状况下具有响应速度快、超调量低、鲁棒性好、抗干扰能力强等优点,相比于经典PI控制器响应时间最高可缩短4.11s,超调量最多减小约4.5倍,提高了燃气流量调节系统的控制精度。
In order to improve the performance of gas generator flow regulation control system,mathematical model was established on the basis of this system. According to analysis,it was proved that the system has the performance with strong non-linear and time-varying characteristics. The Fuzzy-PI dual mode controller was introduced to control the pressure inside of the gas generator. When the system error is serious,Fuzzy controller starts to work to obtain good transient performance. PI controller will be used the other way to achieve favorable steady performance. Simulation results show that the innovative controller integrates the advantages of Fuzzy controller and classic PI controller. In different circumstances,the Fuzzy-PI dual mode controller is in possession of quicker respond,lower overshoot,stronger robustness and better anti-interference performance. Compared with the classic PI controller,the response time can be shortened about 4.11 s,with the overshoot decreased by about4.5 times. Hence,the control accuracy of gas flow regulation system is improved.
In order to improve the performance of gas generator flow regulation control system,mathematical model was established on the basis of this system. According to analysis,it was proved that the system has the performance with strong non-linear and time-varying characteristics. The Fuzzy-PI dual mode controller was introduced to control the pressure inside of the gas generator. When the system error is serious,Fuzzy controller starts to work to obtain good transient performance. PI controller will be used the other way to achieve favorable steady performance. Simulation results show that the innovative controller integrates the advantages of Fuzzy controller and classic PI controller. In different circumstances,the Fuzzy-PI dual mode controller is in possession of quicker respond,lower overshoot,stronger robustness and better anti-interference performance. Compared with the classic PI controller,the response time can be shortened about 4.11 s,with the overshoot decreased by about4.5 times. Hence,the control accuracy of gas flow regulation system is improved.
引文
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[19]石辛民,郝整清.模糊控制及其MATLAB仿真[M].北京:清华大学出版社,2008:121-123.
[20]张省伟,林辉.一种模糊-PI双模控制系统的仿真与设计[J].电子设计工程,2011,19(2):37-39.
[2]Ronald S Fry.A Century of Ramjet Propulsion Technology Evolution[J].Journal of Propulsion and Power,2004,20(1):27-57.
[3]霍东兴,闫大庆,高波.可变流量固体冲压发动机技术研究进展与展望[J].固体火箭技术,2017,40(1):7-15.
[4]张玲翔.美国弹用冲压发动机技术的进展[J].飞航导弹,1998,(11):39-44.
[5]龚晰,何保成,刘志明.固体火箭冲压发动机发展与流量调节现状[J].飞航导弹,2015,(2):74-78.
[6]牛文玉.燃气流量可调的固体火箭冲压发动机控制方法研究[D].哈尔滨:哈尔滨工业大学,2009.
[7]马立坤.燃气流量可调固体火箭冲压发动机动态响应过程研究[D].长沙:国防科学技术大学,2011.
[8]周建军.固体火箭冲压发动机燃气流量调节技术与实验研究[J].弹箭与制导学报,2005,25(4):558-560.
[9]王起飞,苗永强.流星空空导弹战术技术性能分析[J].航空兵器,2004,(5):5-8.
[10]杨石林.可变燃气流量固冲发动机控制系统研究进展[C].西安:中国航天第三专业信息网第三十七届技术交流会暨第一届空天动力联合会议,2016.
[11]何勇攀,陈玉春,于守志,等.固体火箭冲压发动机燃气发生器动态特性影响分析[J].航空动力学报,2017,32(1):227-232.
[12]聂聆聪,张政伟,李岩.燃气发生器压力闭环波动描述函数分析方法研究[J].推进技术,2016,37(3):540-545.(NIE Ling-cong,ZHANG Zheng-wei,LI Yan.Research of Describing Function Method on Gas Generator Pressure Closed-Loop Oscillation[J].Journal of Propulsion Technology,2016,37(3):540-545.)
[13]刘源翔,聂聆聪,张皎,等.基于线性自抗扰控制器的燃气流量可调发生器压强控制算法研究[J].推进技术,2015,36(12):1768-1773.(LIU Yuanxiang,NIE Ling-cong,ZHANG Jiao,et al.Research on Pressure Control Algorithm of a Flow Adjustable Gas Generator Based on Linear Active Disturbance Rejection Control[J].Journal of Propulsion Technology,2015,36(12):1768-1773.)
[14]聂聆聪,刘志明,刘源翔.流量可调燃气发生器压力闭环模糊控制算法[J].推进技术,2013,34(4).(NIE Ling-cong,LIU Zhi-ming,LIU Yuan-xiang.Pressure Close Loop Fuzzy Control Method of a Flow Adjustable Gas Generator[J].Journal of Propulsion Technology,2013,34(4).)
[15]刘源翔,姚晓先,聂聆聪,等.一种流量可调燃气发生器压强控制算法的研究[J].固体火箭技术,2014,37(1).
[16]杨劲松.Fuzzy-PI双模模糊张力控制系统仿真[J].计算机仿真,2010,27(6):216-220.
[17]席爱民.模糊控制技术[M].西安:西安电子科技大学出版社,2008:186-190.
[18]武晓松,陈军,王栋.固体火箭发动机原理[M].北京:兵器工业出版社,2010:236-239.
[19]石辛民,郝整清.模糊控制及其MATLAB仿真[M].北京:清华大学出版社,2008:121-123.
[20]张省伟,林辉.一种模糊-PI双模控制系统的仿真与设计[J].电子设计工程,2011,19(2):37-39.
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