传感器故障下发射装置筒盖系统的容错控制

筒盖系统是潜艇导弹发射的重要装置。筒盖启闭通过电液伺服系统进行控制,筒盖系统通过角度传感器实现其闭环控制,传感器发生故障工况对潜艇的导弹发射将造成严重损害。为了保障筒盖系统安全稳定运行,针对其传感器故障工况设计了PI观测器,实现对筒盖系统传感器故障的实时估计,基于信号重构技术实现了对传感器反馈信号的矫正,并结合鲁棒控制器实现了对筒盖系统传感器故障工况下的安全稳定运行。试验结果表明,该控制器对筒盖系统发生传感器故障工况下的控制实现自愈效果,提高了其控制性能。

Fault Tolerant Control of Launcher Switch Cover System Under Sensor Malfunction

The switch cover system is an important device for submarine missile launcher. The opening and closing of switch cover are controlled by an electro-hydraulic servo system. The closed-loop control of the switch cover system is realized by an angle sensor. The failure of the angle sensor will seriously damage the submarine missile launcher. In order to ensure the safety and stability of switch cover system, a PI observer is designed for the sensor malfunction, which can realize the real-time estimation of sensor malfunction of the switch cover system. Based on the signal reconstruction technology, the sensor feedback signal correction is corrected. In addition, the safety and stability of the switch cover system under sensor malfunction is realized by the robust controller. The experimental results show that the controller proposed in this paper can achieve self-healing effect and improve its control performance in sensor malfunction condition.