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针对可重复使用助推器(RBV)强非线性、强耦合、多输入/多输出的特点,在姿态变化剧烈及空域变化广的调姿转弯阶段,采用非线性动态逆控制方法设计RBV的姿态控制系统。根据时标分离原则及奇异摄动理论,将系统分为快慢两回路子系统。对所需的总控制力矩进行控制分配,由空气舵和反作用控制系统(RCS)共同执行。仿真结果表明:由该法可获得较好的动态性能和鲁棒性。
Aiming at the characteristics of reusable boosters (RBV), such as strong nonlinearity, strong coupling and multiple input / multiple output, the nonlinear dynamic inverse control method is used to design the posture of RBV in the phase of attitude transfer with dramatic changes in airspace and wide airspace. Control System. According to the principle of time-scale separation and singular perturbation theory, the system is divided into two loops subsystem. The total control torque required for control assignment is jointly implemented by the air rudder and the reaction control system (RCS). Simulation results show that this method can obtain better dynamic performance and robustness.