Global Sliding Mode Control for the Bank-to-Turn of Hypersonic Glide Vehicle

[摘要] The technology of Bank-to-Turn has been recognized as an attractive direction due to their significance for the control of hypersonic glide vehicle. Strong coupling existing among pitch, yaw and roll channel was a great challenge for banking to turn, and thus a novel global sliding mode controller was designed for hypersonic glider in this paper. Considering the coupling among channels as interference, we can use invariance principle of sliding mode motion to realize the decoupling control. The global sliding mode control system could eliminate the stage of reaching, which can lead to the realization of whole systematic process decoupling control. When the global sliding mode factor was designed, a minimum norm pole assignment method of the sliding mode matrix was introduced to improve the robustness of the system. The method of continuity of symbolic function was adopted to overcome the chatter, which furtherly modify the transient performance of the system. The simulation results show that this method has good performance of three channel decoupling control and guidance command tracking. And it can meet the requirements of the dynamic performance of the system.

[发布机构] School of Astronautics, Northwestern Polytechnical University, Xi'an; 710072, China^1;Xi'An Aerospace Propulsion Institute, Xi'an; 710199, China^2

[效力级别] 航空航天工程 [学科分类] 航空航天科学

[关键词] Decoupling controls;Dynamic performance;Global sliding mode;Global sliding mode control;Invariance principle;Sliding mode motion;Symbolic functions;Transient performance