论文部分内容阅读
复杂的飞行器系统容易同时受到外部干扰和时滞的影响,为改善该系统控制性能设计一种新的基于干扰观测器控制策略。通过构造辅助观测器以及适当的坐标变换观测将来时刻的干扰,得到相应的干扰预测规律。与传统的鲁棒控制律结合,能够保证系统的稳定性,同时干扰的影响可以得到实时补偿。仿真结果表明该方案在外部干扰和时滞共同作用下具有较好跟踪特性。
The complexity of the aircraft system is easily affected by both external disturbances and time delays. A new disturbance observer control strategy is proposed to improve the control performance of the system. By constructing the auxiliary observer and the appropriate coordinate transformation to observe the interference in the future, the corresponding law of interference prediction is obtained. Combined with the traditional robust control law, the stability of the system can be guaranteed, and the influence of interference can be compensated in real time. Simulation results show that this scheme has better tracking performance under the combined effect of external disturbance and time delay.