卫星姿态控制用无铁心飞轮电机的设计与研究

Design and Research of Brushless Flywheel DC Motor for the Satellite Attitude Control

为了适应现代卫星的高精度、高可靠和轻量化发展需要,姿态控制系统对飞轮电机的输出力矩平稳性、效率、质量、可靠性、体积等指标提出了更高要求。通过对飞轮电机极对数、转矩波动、黏性阻尼系数以及电枢绕组的设计和研究,并通过电磁仿真、力学和热仿真,设计了满足飞轮系统要求的电机。通过实验验证,该外转子无槽无铁心飞轮电机满足卫星姿态控制的精度和稳定性要求。

In order to meet the needs of high precision and light weight development of modern satellites,the attitude control system puts forward higher requirements on the output torque stability,efficiency,weight and volume of the flywheel motor.A flywheel motor that meets the requirements was designed by researching the number of pole pairs,the torque ripple,the viscous damping coefficient and the armature winding.The feasibility of the design was illustrated by electromagnetic simulation,mechanical simulation and thermal simulation.It was verified by experiment that the outer rotor slotless and ironless flywheel motor meets the requirements of accuracy and stability of the satellite attitude control.