导弹气动力/直接力自适应控制分配及优化设计

Adaptive Control Allocation Between Aerodynamic Fin and Side Thruster and Controller Design Using Multi-objective Optimization

建立了具有气动力和直接侧向力混合控制的导弹动力学模型,提出了模糊自适应控制分配与复合控制器优化集成设计方案。设计了基于参考模型的模糊自适应控制分配策略,使气动力/直接力动态分配过程中复合执行机构等效动态特性与参考模型一致。采用进化策略对导弹复合控制系统参数进行了多目标优化设计。仿真结果表明:导弹复合控制系统具有很好的快速大机动跟踪能力,实现了导弹气动力和直接侧向力之间合理的自适应控制分配。

The blended dynamic model of missile with aerodynamic fin and side thruster is developed. The design scheme integrating control allocation with blended controller optimizing is proposed. Control allocation strategy based on fuzzy logic and model reference adaptive control is developed, which makes the equivalent dynamics of the blended actuators between the aerodynamic fin and side thruster equal to the one of the reference models. The parameters of the blended control system are selected by optimizing a multi-objective cost function using evolutionary strategies （ES）. The simulation results demonstrate that the blended control system has strong abilities of tracking high maneuver acceleration command rapidly and implementing the adaptive control allocation between aerodynamic fin and side thruster.