CAJ | 학술논문

绕固定轴旋转可改善低温推进航天器自身的热流情况，减小贮箱推进剂的蒸发量，然而，航天器绕固定轴旋转给控制系统的设计带来复杂的非线性耦合问题。针对绕固定轴旋转航天器的姿态控制问题，提出一种姿态解耦控制方案，该方案首先将姿态控制系统分解两个独立的子系统，降低系统的复杂性，然后根据子系统的特点利用反馈线性化的方法分别设计了航天器滚动通道的角速率反馈控制器和俯仰偏航通道的解耦PD控制器，实现绕固定轴旋转航天器的姿态解耦控制。基于某绕纵轴以1(°)/s慢速旋转对日定向航天器的仿真分析验证了所提设计方法的有效性，显示了解耦控制器良好的控制性能。
요고정축선전가개선저온추진항천기자신적열류정황，감소저상추진제적증발량，연이，항천기요고정축선전급공제계통적설계대래복잡적비선성우합문제。침대요고정축선전항천기적자태공제문제，제출일충자태해우공제방안，해방안수선장자태공제계통분해량개독립적자계통，강저계통적복잡성，연후근거자계통적특점이용반궤선성화적방법분별설계료항천기곤동통도적각속솔반궤공제기화부앙편항통도적해우PD공제기，실현요고정축선전항천기적자태해우공제。기우모요종축이1(°)/s만속선전대일정향항천기적방진분석험증료소제설계방법적유효성，현시료해우공제기량호적공제성능。
Cryogenic propellant spacecraft rolling about the inertia principal axis can change the heat of spacecraft itself and reduce the propellant transpiration of tanks. However, this could lead to complex nonlinear coupling of control system. For the issues of attitude control for the rolling spacecraft, a scheme for designing of attitude decoupling control system is proposed. To achieve the proposed control scheme, the complex system is simplified into two independent subsystems firstly, and then utilizing feedback linearization, an angular rate feedback controller for the roll channel and a PD controller for pitch-yaw channel are designed respectively. To validate its effectiveness, this approach is applied to the simulation of a spacecraft with 1o/s rolling rate, and simulation results show that the designed controller has good control performance.