升力体布局飞行器BTT协调转弯驾驶仪研究  

Study on BTT Coordinated Turn Autopilot Design for Lifting Vehicles

作　　者：李强[1] 童伟[1] 王晓晖[1] 贾平会 王永海[1] 

机构地区：[1]北京航天长征飞行器研究所,北京100076

出　　处：《航天控制》2016年第5期52-58,共7页Aerospace Control

摘　　要：针对升力体布局飞行器BTT协调转弯控制问题,提出了两回路+PI校正的偏航过载驾驶仪结构及近似构造内回路侧滑角速度反馈的实现方法。重点分析了转弯加速度对弹体偏航通道影响的特点,并基于干扰输出最小原理确定了两回路+PI校正的过载驾驶仪结构,保证系统的快速性及稳定性。论证了内回路侧滑角速度反馈能使干扰收敛至零的本质,并利用偏航角速度+前馈补偿近似构造侧滑角速度反馈,确保方法的工程可实现性。仿真结果表明,该驾驶仪结构能实现转弯过程中侧滑快速归零,提高协调转弯能力,鲁棒性较强,具有一定工程应用价值。Regarding BTT coordinated turn control of reentry gliding vehicle, two-loop acceleration yawautopilot with PI compensation and the engineering approximation of sideslip angle velocity feedback for autopilot inner-loop are proposed. The effect of turning acceleration to body-flame yaw is analyzed especially and system rapidity and stability of two-loop acceleration yaw-autopilot with PI compensation is ensured by turning acceleration, which is based on minimum output. The convergence essence of sideslip angle velocity feedback is clarified. Furthermore, the engineering implementation composed by yaw rate and feedforward compensation is presented. Finally, the simulation results demonstrate that the autopilot design can make sideslip angle to be zero rapidly and the performance of coordinated turn is improved. The design has strong robustness and high practice value.

关 键 词：升力体布局飞行器 BTT控制 协调转弯 回路设计 侧滑角速度反馈 

分 类 号：TJ576.3[兵器科学与技术—军事化学与烟火技术]