太阳能帆板驱动装置非接触供电技术可行性研究

针对太阳能帆板驱动装置(SADA)中的滑环存在接触和摩擦的问题,提出采用非接触供电技术提高SADA在轨寿命的设想,并设计了新型的轴式松耦合变压器和相应的能量传输电路,完成了1套非接触电能传输装置原理演示样机,并对轴式松耦合变压器的耦合系数和原理演示样机的传输功率密度和效率进行测试和分析,探讨了非接触供电技术应用于太阳能帆板驱动装置的可行性。     

航天器太阳电池阵驱动装置的新进展

通常长寿命三轴稳定卫星都采用帆板式太阳电池阵进行能源供应,并使用太阳电池阵驱动装置使电池阵对日定向。国际上从20世纪60年代开始,不断开发研制太阳电池阵驱动装置,以满足在大功率、小型化、适应恶劣环境等方面的特殊需求,经过几代的发展,取得了长足的进步。根据国内收集的相关信息和资料,通过介绍国际该领域的发展及对应需求的典型产品,尝试分析该领域中相应的应用、研究的重点及发展的方向。     

Study on the Behavior of Solar Array Deployment with Root Hinge Drive Assembly

In this paper, a method of using a root hinge drive assembly (RHDA) to control the solar array deployment is provided and a multi-DOF mechanism dynamic model of the system is established. In this way, the root hinge torque can be calculated iteratively. Then taking the predicted torque as a reference, a RHDA is designed for a large multiple-stage packaging and deployable solar array system. The control effect of the drive assembly is validated by ground tests. The test results indicate that the solar arrays can be deployed smoothly, and the deployment velocities are restricted by the drive assembly as expected. During the tests, the RHDA output speed and output torque are obtained. In order to examine the impact force when the yoke is lock-up with a hard stop, dynamics simulations are performed according to the actual behavior. The simulation result indicates that the designed RHDA reduces the impact force significantly and improves the lock-up reliability effectively.