Abstract
AbstractFor the attitude maneuver of spacecraft with large inertia product, a load layout and maneuver planning method based on the diagonalization of inertia matrix and a control system based on nonlinear dynamic inversion and PID controller are introduced in this paper. Firstly, based on the diagonalization of inertia matrix and the selection of Euler rotation axis, the load layout and maneuver path are designed for the aircraft with large inertia product. On this basis, the nonlinear dynamic inverse and PID control are used to design the maneuver and ground tracking controller. The simulation results demonstrate that the controller can realize high-precision attitude maneuver and ground tracking at the same time, and the control with diagonalization requires less control torque and has better performance than that without diagonalization. It can be applied for long-term in-orbit control.KeywordsInertia matrixDiagonalizationControl-oriented layoutDynamic decouplingPD/PID control
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