高超声速飞行器最优PI-Hinf控制器设计

Hypersonic Vehicle Optimal PI-Hinf Controller Design

研究高超音速控制器优化问题,由于控制系统存在较强鲁棒性和非线性,用传统方法寻优计算量大,影响实时控制。为解决上述问题,采用最优比例积分H无穷(PI-Hinf)二环控制方法对高速飞行器构型的输入/输出线性化模型进行了控制器设计。控制方法能有效地抑制模型参数不确定性带来的扰动并使系统达到很好的静态性能。对模型进行仿真,结果表明,所设计的控制器具有较强的鲁棒性,可以满足飞行器在复杂条件下飞行的控制要求,达到0误差的跟踪精度,为设计提供了依据。

Taking an improved nonlinear longitudinal model of a generic hypersonic vehicle as an object,the Optimal Proportional Integral H-infinite theory（PI-Hinf） was used to design a controller upon an optimal multi-input-output model.The selected control method can restrain disturbance resulting from the model parameter changes effectively,and has good static performance.The simulation result shows that the designed controller can meet the robust requirement.And the tracking precision is satisfactory.