摘要
在涡扇发动机高压转子转速控制中,由于控制器硬件电路的不确定性因素和各种干扰对控制的影响,从而导致控制系统的平衡点偏离原来的位置,而在经典PID控制中不能对各种干扰及时补偿。针对上述问题,设计了线性自抗扰控制器(由"安排过渡过程"的装置、"提取输出量微分信号"的装置(扩张状态观测器)和误差反馈控制律三部分组成)。通过仿真分析得出以下结论:在扩张状态观测器下的闭环系统可对状态估计进行校正,在误差反馈控制律下实现了对涡扇发动机的高压转子转速无稳态误差控制。
Due to uncertainty factors and disturbances in speed control of high pressure rotor for turbofan engines,the equilibrium point of control system may deviate from the original position. The classical PID control can not compensate for the uncertainty factors and disturbances timely. This paper designs a linear activr disturbance rejection controller,which is composed of three parts： transition process arranging device,extraction output differential signal device（ ESO）,and error feedback control law. Simulation results show that the state estimation can be corrected by the closed-loop system with extended state observer,and the speed control with no steady-state error is implemented under the error feedback control law for turbofan engine high-pressure rotor.
出处
《计算机仿真》
CSCD
北大核心
2015年第7期365-368,共4页
Computer Simulation
关键词
线性自抗扰控制
涡扇发动机
扩张状态观测器
数值仿真
Linear active disturbance rejection control（LADRC）
Turbofan engine
Extended state observer（ESO）
Numerical simulation
