Torque distribution of The Integrated Magnetically Suspended Inertia. Actuator for attitude maneuvers
Torque distribution of The Integrated Magnetically Suspended Inertia. Actuator for attitude maneuvers
复制标题
用于姿态机动的集成磁悬浮惯性执行器的扭矩分配
DOI：
10.1016/j.actaastro.2015.11.008
复制
发表时间：
2016
影响因子：
3.5
通讯作者：
Yang Zhaohua
中科院分区：
文献类型：
--
作者：
Yu Yuanjin;Fang Jiancheng;Yang Zhaohua
集成磁悬浮惯性作动器（IMSIA）由三个正交固定的磁悬浮飞轮（MSFW）和一个双框架磁悬浮控制力矩陀螺（DGMSCMG）组成，可同时提供长期高精度力矩和瞬时大力矩。为了降低电机的电能消耗，提出了一种新的转矩分配策略，实现了功率优化。该方案采用IMSIA的动能变化作为代价函数，在不改变IMSIA总转矩的情况下获得执行器的分配指令。数值仿真和桌面半实物仿真验证了新策略的有效性。仿真结果表明，与传统的最小转矩控制策略相比，该方法明显降低了系统的能耗。
The Integrated Magnetically Suspended Inertia Actuator (IMSIA), composed of three orthogonal fixed Magnetically Suspended Flywheels (MSFWs) and a Double Gimbal Magnetically Suspended Control Moment Gyros (DGMSCMG), can provide long-term high-precision torque and instantaneous great torque simultaneously. To reduce the electrical energy consumption, a novel torque distribution strategy yielding power optimization is investigated. The proposed scheme adopts the kinetic energy variation of the IMSIA as the cost function and obtains the distribution instructs of the actuators without changing the total torque of the IMSIA. Numerical simulation and tabletop hardware-in-the-loop simulation are carried out to verify the effectiveness of the new strategy. The results show that the new method obviously reduces the energy consumption compared with the traditional minimum-torque strategy.