Adaptive attitude control of Heliogyro solar sails with reflective control devices and a single blade tilting actuator

초록

Solar sails use solar radiation pressure (SRP) for propulsion, enabling challenging missions such as geostorm warning and deep space exploration. Regarding Heliogyro, none of the existing research has successfully combined robust control for deep space missions, addressed the issue of limited passive thrust from small SRP that can lead to actuator saturation, and incorporated Reflectivity Control Device (RCD)-based attitude control. This study presents a dynamic model for a deep-space Heliogyro solar sail system with a robust control algorithm. The model integrates a single blade tilt actuator and blade tip RCDs, replacing conventional actuators, reducing mechanical complexity, weight, and achieving structural simplification. Stability is achieved by controlling the system within the torque limits imposed by passive thrust, a critical challenge for maintaining control. If control inputs exceed these torque limits, Lyapunov stability is immediately compromised. By applying adaptive sliding mode control, the model ensures that control inputs remain within these limits, guaranteeing stability. Additionally, an optimal control allocation process converts virtual inputs into actual actuator commands, managing both the single blade tilt actuator and six RCDs. © 2026 COSPAR. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

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