欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对存在执行机构安装偏差和外干扰的航天器姿态控制问题,提出一类基于反步法的自适应滑模控制策略,该方法在实现姿态控制快速性和高精度的同时,能有效地避免因执行机构安装偏差引起的不确定性所导致的控制奇异现象。在此基础上,考虑到执行机构冗余特性,进一步提出一种基于能量最优约束二次规划的动态控制分配算法来完成期望指令到执行机构的指令分配,克服了传统伪逆法难以考虑的控制力矩位置和速度约束,减少了系统功耗,实现了分配后控制力矩的平稳性和能量最优。最后,将提出的控制方案应用于某型轮控刚体航天器的姿态稳定任务中,仿真结果验证了提出方法的可行性、有效性。
英文摘要：
A backstepping design based adaptive control algorithm is developed for attitude stabilization of a rigid spacecraft,in which the uncertainties of actuators misalignment and external disturbances are considered.Lyapunov stability analysis shows that the attitude and angular velocity converge to zero,and an novel updating law is employed to implement attitude control law as well,in which the possible singularity problem caused by the estimation of uncertainties due to actuator misalignment is avoided effectively.In addition,a dynamic control allocation is investigated to distribute the desired control command among redundant actuators.This method extends the conventional quadratic-programming control allocation by penalizing the previous step before sampling intervals and minimize the energy consume.Finally,a numerical simulation example for a spacecraft attitude control system is included to illustrate effectiveness and feasibility of the proposed control scheme.
同期刊论文项目
同项目期刊论文
Distributed containment control for Lagrangian networks with parametric uncertainties under a direct
Distributed coordination for second-order multi-agent systems with nonlinear dynamics using only rel
Distributed adaptive coordination for multiple Lagrangian systems under a directed graph without usi
Nonlinear dynamics and reconfiguration control of two-satellite Coulomb tether formation at libratio
Nonlinear dynamics and station-keeping control of a rotating tethered satellite system in halo orbit
Distributed containment control for Lagrangiannetworks with parametric uncertainties under a directe
Decentralized adaptive output feedback attitude synchronization tracking control of satellite format
Decentralised adaptive output feedbacksynchronisation tracking control of spacecraft formation flyin
Delay depending decentralized adaptive attitude synchronization tracking control of spacecraft forma
Fault-tolerant attitude control for flexible spacecraft without angular velocity magnitude measureme
L-2 Disturbance Attenuation Control for Input Saturated Spacecraft Attitude Stabilization without An
Robust finite-time control allocation in spacecraft attitude stabilization under actuator misalignme
Robust adaptive attitude tracking control with L2 -gain performance and vibration reduction of an or
Intelligent proportional-derivative control for flexible spacecraft attitude stabilization with unkn
Adaptive sliding mode fault tolerant attitude tracking control for flexible spacecraft under actuato
Adaptive nonlinear proportional-derivative type fault tolerant control for flexible spacecraft attit
Adaptive fault tolerant control using integral sliding mode strategy with application to flexible sp
Reaction wheel fault tolerant control for spacecraft attitude stabilization with finite-time converg
Finite-time fault tolerant attitude control for over-activated spacecraft subject to actuator misali
Adaptive integral-type sliding mode control for spacecraft attitude maneuvering under actuator stuck
Robust fault tolerant control for spacecraft attitude stabilization under actuator faults and bounde
期刊信息
位置：