摘要
为了满足现代高性能航空发动机对控制系统的较高要求,基于数字电子控制技术,利用发动机转速测量信号解除了转速对被控燃油流量的耦合作用,利用燃油流量信号补偿了由飞行高度、马赫数和转速等因素引起的发动机增益的变化,采用变参数PID算法实现了系统转速的无静差控制,同时保证了燃油流量不发生超调。结果表明:采用该项电调技术进行发动机控制,可以有效地提高系统的控制精度、快速性和平稳性;控制效果全面优于机械液压调节器。
In order to satisfy the high capability of modern aviation turbojet engine, a new aeroengine control system was developed with digital electronic control technique. A turbine rotate speed measure signal was used to unchain the coupling affect between the rotate speed and controlled fuel flux. A fuel flux measure signal was used to compensate the variable gain parameter of turbine rotate speed which influenced by the flight altitude, mach number and rotate speed of turbine. A variable parameters PID control algorithm was used to achieve the zero static error of turbine rotate speed and non-overshooting adjusting of controlled fuel flux. The results show that： the control precision, speed and stability can be improved obviously by using this method; the control effect of electronic adjusted system is better than the one of mechanical hydraulic adjuster. 4 figs, 8 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第1期103-106,共4页
Journal of Chang’an University(Natural Science Edition)
基金
船舶工业科技预研基金项目(07J412)
关键词
航空发动机
数字电子控制器
电子调节
PID控制
变参数
turbojet engine
digital electronic controller
electronic adjust
PID control
variable parameter
