摘要
目的给出线性跟踪微分器的设计方法，并研究将其用于控制系统状态反馈的效果．方法利用积分器反馈方法，给出了α阶线性跟踪微分器（可实现对微分信号的α阶静态无差跟踪）及γ阶强跟踪微分器（可直接获得待微分信号的１～γ阶微分估值）两种线性跟踪微分器设计方案，并将其用于直接获取状态及进行状态反馈控制的仿真研究．结果与结论结果表明只要合理地选择跟踪微分器的类型及参数，无论对线性系统还是非线性时变系统，这一方法均是有效的．文中还给出了选择线性跟踪微分器的基本原则．
Aim To give the method of designing linear tracking differentiators(LTDs) and study the effectiveness of using the LDTs in state feedback control of systems. Methods By using the integrator feedback, two kinds of linear tracking differentiators, α order LTDs and γ order strong LTDs, were presented and simulations with LTDs used as state estimators in state feedback control were performed. Results and Conclusion Simulation results show that if LTDs are chosen properly, they can follow desired track quite well and are very effective and practical for both linear and nonlinear systems state feedback control designs. The basic principles for choosing LTDs are given.
出处
《北京理工大学学报》
EI
CAS
CSCD
1999年第2期203-206,共4页
Transactions of Beijing Institute of Technology
基金
中国科学院自动化研究所复杂系统工程学开放实验室基金
关键词
跟踪微分器
状态估计
状态反馈控制
控制系统
tracking differentiator
state estimate
state feedback
inverse system method
nonlinear system
