摘要
基于L2最优控制分配策略,提出一种直接侧向力与气动力复合控制导弹自动驾驶仪设计方法。导弹复合控制系统由控制分配策略和虚拟控制律2个部分组成。基于干扰抑制不变集的分析思想,采用反步法设计虚拟控制律。将虚拟控制律产生的控制量通过L2最优策略分配给实际执行机构。设计过程中,考虑了执行机构的动特性以及外界干扰的影响。仿真结果表明,导弹复合控制系统对过载跟踪指令响应快速且平稳。跟踪过程中,直接侧向力与气动力之间相互配合,验证了控制方法的有效性。
Based on L2 optimal control allocation, an autopilot design approach is proposed for the missilewith aerodynamic control surfaces and reaction jets. The control system involves a control allocator and a con trol law. By utilizing the invariant set analysis method, the control law is designed to produce the virtual control effort signals via a backstepping approach. The control allocator distributes the virtual signals to the actuators on the missile, i.e. , the aerodynamic control surfaces and the reaction iets, by L2 optimal control allocation strategy. In the design process, the actuator dynamics and external disturbances are considered. Simulation re- suits show that the missile control system tracks an acceleration command fast and smoothly. In the tracking process, aerodynamic control surfaces cooperate with reaction jets, which verifies the effectiveness of the pro posed approach.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2014年第3期527-531,共5页
Systems Engineering and Electronics
基金
国家自然科学基金(61174203)
教育部新世纪优秀人才支持计划(NCET-08-0153)
航空科学基金(20110177002)资助课题
关键词
复合控制
控制分配
反步法
不变集
dual control~ control allocation
backstepping
invariant set
