This research focuses on the development and application of three methods for the underactuated spacecraft attitude problem. The first method utilizes Solar Radiation Pressure (SRP) to restore linear controllability to a spacecraft with only two functional Reaction Wheels (RWs). The second method is concerned with the creation of drift sets that characterize initial conditions for a spacecraft with two RWs such that it can perform desired imaging missions given constraints and disturbances torques. The third method describes the use of a hybrid switching scheme for two external moments control and two internal moments control, as well as a Model Predictive Control (MPC) approach for two internal moments control. The advantage to these approaches are that they can be used for zero and nonzero angular momentum. Simulations are done on spacecraft nonlinear models to demonstrate each of the approaches.


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    A Novel Control Strategy to Restrain Tumbling of an Underactuated Spacecraft with Disturbance

    Zhang, B. / Wu, H. / European Space Agency | British Library Conference Proceedings | 2000


    Attitude Control of Underactuated Spacecraft

    Spindler, K. | British Library Online Contents | 2000


    Concurrent rendezvous control of underactuated spacecraft

    Muralidharan, Vijay | Online Contents | 2017


    Nonlinear Control of Underactuated Spacecraft Hovering

    Huang, Xu / Yan, Ye / Zhou, Yang | AIAA | 2015