کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1764449 | 1020056 | 2013 | 16 صفحه PDF | دانلود رایگان |
A nonlinear control technique pertaining to attitude synchronization problems is presented for formation flying spacecraft by utilizing the State-Dependent Riccati Equation (SDRE) technique. An attitude controller consisting of relative control and absolute control is designed using a reaction wheel assembly for regulator and tracking problems. To achieve effective relative control, the selective state-dependent connectivity is also adopted. The global asymptotic stability of the controller is confirmed using the Lyapunov theorem and is verified by Monte-Carlo simulations. An air-bearing-based Hardware-In-the-Loop Simulator (HILS) is also developed to validate the proposed control laws in real-time environments. The SDRE controller is discretized for implementation of a real-time processor in the HILS. The pointing errors are about 0.2° in the numerical simulations and about 1° in the HILS simulations, and experimental simulations confirm the effectiveness of the control algorithm for attitude synchronization in a spacecraft formation flying mission. Consequently, experiments using the HILS in a real-time environment can appropriately perform spacecraft attitude synchronization algorithms for formation flying spacecraft.
► A nonlinear control technique is presented for attitude synchronization problems.
► The attitude controller consists of relative control and absolute control.
► The control algorithm is applied for attitude regulator and tracking problems.
► An air-bearing-based Hardware-In-the-Loop Simulator (HILS) is also developed.
► The HILS simulations confirm the effectiveness of the control algorithm.
Journal: Advances in Space Research - Volume 51, Issue 3, 1 February 2013, Pages 434–449