关键词: Abstract： The control moment gyroscope (CMG), with the advantages of large output torque, high torque control accuracy and zero propellant consumption, is a key actuator in attitude control system for large spacecraft, such as high resolution earthobservation satellites, space stations and space labs. In recent years, as the development of miniature technology, the agilities of small satellites and onorbit servicing, including reactionlessness robotic arm and momentum management of onorbit assembly, possibly are achieved through an array of CMGs. Moreover, it can also be used to stabilize twowheeled vehicles and nautical rolling. In this paper, the development and application of CMGs are introduced. The possible research focuses are provided for future work.

Abstract: 关键词： CMG；姿态控制；空间应用

Key words: Keywords： CMG, attitude control, space application