飞轮单轴姿态控制及储能系统

Single axis attitude control and energy storage system with two flywheels

给出了一种应用于小卫星的集成化单轴姿态控制及储能系统。用同轴反转安装的双飞轮进行必要的解耦控制，能够实现卫星在日阳期及日阴期能量的储存与释放，同时对卫星的姿态进行稳定或按照要求调整。通过仿真分析，证明了集成化单轴姿态控制与储能系统方案的正确性，分析了系统参数对控制精度的影响，给出了参数优化途径。搭建了单轴姿态控制与储能实验演示系统并进行了实验，在0～20000r／min转速下进行了储能实验，该过程模拟卫星单自由度旋转气浮转台的控制精度优于1．5^o，折算到百公斤量级卫星的姿态角波动量为1．8’；以20000～10000r／rain的转速进行了放能实验，该过程转台的控制精度优于1．2’，折算到百公斤量级卫星的角度波动量为1．6”，总线电压24V，电压波动量〈1．8％。实验结果表明：单轴姿态控制与储能系统应用于卫星及其它空间飞行器上能够同时完姿态控制和能量需求。

A single axis Integrated Power and Attitude Control System （IPACS） with double flywheels, including its working principle and configuration, were given to simulate the charge, discharge and the attitude control process during the full sun and the eclipse. The simulation analysis resuits show that single axis IPACS with double flywheels is feasible. The impact of the system parameter on the control precision was discussed, then the parameter optimization approach was offered. A experimental equipment of single axis attitude control and energy storage system was founded and the experiments on 20 000 r/min speed show that the system can be used to store and release energy while adjusting the attitudes of a platform or a satellite. The angle of the platform can be controlled within1.5 ^o and 1.2＇, re After eliminating spectively, when the bus DC voltage is 24 perform the energy ante affection, such as the diffe storage and attitude control in the rence V and the fluctuating is less than 1.8%. in motors, the scheme using flywheels to satellite is effective.