控制理论与应用2016,Vol.33Issue(10):1337-1344,8.DOI:10.7641/CTA.2016.60082
运输机低空重装空投增益自适应滑模控制
Low altitude heavyweight airdrop flight control design using sliding mode control with gains adaptation
摘要
Abstract
This paper proposes a global sliding mode flight control method with switching gains adaptation for low altitude heavyweight airdrop operations, in the presence of uncertainties whose bounds are not known. This method uses the feedback linearization technique to decouple the nonlinear heavyweight airdrop model, thus solving the strong nonlinear problem of the system. On this basis, a global sliding mode controller with switching gains adaptation is presented. It guarantees the global robustness of the system and overcomes the influence of the initial errors in the reaching phase of the sliding mode to the switching gains adaptation process. A modified gains adaptation method is proposed, which solves the overestimation problem of the switching gains in the sliding phase of the sliding mode. The stability and robustness properties are proved by using the Lyapunov theory. The control performance as well as the advantage of the proposed method is evaluated in a number of simulation scenarios.关键词
飞行控制/非线性系统/反馈线性化/自适应控制/滑模控制Key words
flight control/nonlinear system/feedback linearization/adaptive control/sliding mode control分类
信息技术与安全科学引用本文复制引用
刘日,孙秀霞,董文瀚,王栋..运输机低空重装空投增益自适应滑模控制[J].控制理论与应用,2016,33(10):1337-1344,8.基金项目
国家自然科学基金项目(61273141),航空科学基金项目(20141396012)资助 (61273141)