کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1717621 1520084 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Extended State Observer based robust attitude control of spacecraft with input saturation
ترجمه فارسی عنوان
نظارت دقیق بر روی فضاپیمای با اشباع ورودی، مبتنی بر نظارت گسترده ای است
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی

This paper addresses the problem of robust optimal control of spacecraft attitude stabilization in the presence of parametric uncertainties, external disturbances and actuator saturation simultaneously. As a stepping stone, an Extended State Observer (ESO) is developed to estimate and compensate the specified uncertainties including actuators' misalignments and parametric uncertainties while ensuring uniformly ultimately bounded estimation error in the sense of finite-time stability. Then, with the reconstructed information, an inverse optimal Control Lyapunov Function (CLF) approach is developed to guarantee asymptotic stability of the closed-loop system, such that an optimal/minimum performance index can be achieved. The associated stability proof is constructive and accomplished by the development of a novel Lyapunov function candidate. Furthermore, with the concept of input–output linearization of dynamics transverse to zero dynamic manifold, a rapid exponential stabilization CLF based optimal control scheme is investigated by utilizing the quadratic programming technique to restrain the actuator saturation. Simulation results are presented to illustrate the performance of the proposed schemes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 50, March 2016, Pages 173–182
نویسندگان
, , ,