Fast Smooth Second Order Sliding Mode Control Design for Near-Space Hypersonic Vehicle’s Re-entry Attitude
This paper deals with the attitude control problem for a near-space hypersonic vehicle (NHV) subject to strong parameter uncertainties and external disturbances. To solve the issue that the slow-loop virtual control signal should be smooth enough so as to be well tracked in the fast loop, which is usually neglected in sliding mode control design with two-loop structure for NHV, a fast smooth second order sliding mode (SSOSM) algorithm is proposed and its finite time convergence is proved based on Lyapunov theorem. Then it is utilized to deign the slow-loop control system to generate smooth angular rate command as virtual control signal so as to be tracked by the fast loop. Further in the fast loop, a modified super twisting algorithm with enhanced robustness is used to construct the robust fast-loop control system. Moreover, to achieve finite time convergence for tracking errors in the slow and fast loop respectively, terminal sliding mode approach is integrated into the two-loop control scheme. Finally, simulation results are presented to show the effectiveness of the proposed approach.
Near space hypersonic vehicle Sliding mode control Super twisting algorithm
ZHANG Ruimin SUN Changyin ZHANG Jingmei Huang Yiqing Qian Chengshan
School of Automation, Southeast University, Nanjing 210096, China School of Mathematics & Statistics School of Automation, Southeast University, Nanjing 210096, China
国际会议
The 31st Chinese Control Conference(第三十一届中国控制会议)
合肥
英文
3143-3148
2012-07-01（万方平台首次上网日期，不代表论文的发表时间）