摘要
针对基于状态空间的控制器极点配置设计法设计及工程调试难度大和基于传递函数的经典控制方法无法利用系统内部状态信息的各自缺点,提出将状态观测器理论和经典控制理论相结合的一种方法,用状态观测器估取系统内部状态有用信息量作为反馈信号,再用经典控制技术设计具体控制算法。基于红外成像导引头控制系统,着重实现了利用状态观测器提高传感器精度、扩充传感器功能和补偿扰动力矩干扰三方面功能。仿真结果表明,对两项技术的结合应用,有效降低传感器非理想因素影响,对系统内部状态信息估取并将此作为反馈信号以改善系统内部特性,对扰动信号估取和补偿,提高系统整体性能。
To overcome the difficulties of design and modulating in projection about pole placement way in controller design based on state space and the disability to use of inner state information in system about feedback controller, a new approach was proposed, which obtained the feedback signal though state observer and designed the controller with feedback control theory. On the basis of IR Imaging seeker control system, the precision of sensors was optimized, the measure dimension of sensors was enlarged, and the disturbances were compensated by state observer. Simulation results show that, from the combining two techniques, the ill impacts are decreased, and the inner status＇ information is obtained to improve inner character. Disturbances are estimated and compensated, and then the whole character of system is improved.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2013年第12期2912-2918,共7页
Journal of System Simulation
关键词
状态观测器
反馈控制
扰动
补偿
算法研究
仿真实现
state observer
feedback control
disturbance
compensation
algorithm research
simulation implementation
