基于扰动补偿的舰载机APCS离散变结构设计

Discrete Variable Structure APCS Design of Carrier-based Aircraft Based on Dynamic Disturbance Compensator

研究舰载机着舰过程优化问题,在分析舰载机进场推力补偿系统(APCS)原理的基础上,研究了系统在受扰动情况下的离散变结构设计问题。针对传统APCS抗扰性和稳定性较差的缺点,提出根据扰动补偿的离散变结构控制理论,重新设计了高抗扰性的保持地速迎角恒定的进场推力补偿系统,并且通过引入双曲正切函数降低了系统的抖振。搭建了完整的仿真系统进行仿真,仿真结果表明新的推力补偿系统能使舰载机近舰时航迹角快速跟踪俯仰角,且与传统补偿系统相比,前者能很好地抵抗母舰舰尾扰流的干扰,达到了着舰过程优化设计目的。

Based on the introduction and analysis of approach power compensation system in carrier-based air-craft, the design problem of approach power compensation system via discrete variable structure control theory was re-searched, and computer simulation was carried out. Aiming at the weakness of traditional APCS, with the using of discrete variable structure control theory bases on disturbance compensation, a new APCS with good anti-disturb per-formance was designed. The chatter of the system was weakened by replacing sign function with hyperbolic tangent function. Compared with traditional APCS, simulation results indicate that the new system has better performance in tracking and reduces the influence of air disturbance.