论文部分内容阅读
基于复合调节固冲发动机非线性动力学模型,对发动机在气道/燃气发生器/喷管调节下的响应进行了分析。在此基础上,提出采用进气道调节提高其所保有的最佳性能,利用燃气发生器/喷管调节控制发动机推力和补燃室工作压力。控制系统设计中,采用INA方法削弱推力回路和补燃室工作压力回路间的耦合,采用频域信息融合方法构造没有非最小相位特性的反馈变量,并设计PI控制器。非线性仿真结果表明,文中所设计的控制器能对复合调节固冲发动机实现有效控制。
The response of the engine under the airway / gas generator / nozzle adjustment was analyzed based on the composite nonlinear dynamics model of the solid-flushing engine. On this basis, it is proposed to adopt the inlet adjustment to improve its best performance, and use the gas generator / nozzle adjustment to control the engine thrust and make up the working pressure of the combustion chamber. In the control system design, the INA method is used to weaken the coupling between the thrust loop and the working pressure loop of the afterburner. The frequency domain information fusion method is used to construct the feedback variable without non-minimum phase characteristics and the PI controller is designed. The nonlinear simulation results show that the controller designed in this paper can effectively control the compound adjusting solid impulse motor.