摘要
该文深入研究目标全息反馈非线性控制(nonlinear control with objective holographic feedbacks,NCOHF)设计方法在单输入多输出(single input multiple output,SIMO)控制系统中发挥作用的机理。鉴于线性系统是非线性系统的特例,将NCOHF设计方法用于线性控制系统中。详细讨论NCOHF设计方法配置系统极点的原理和解决目标量跟踪精度的本质。基于Hartman-Grobman定理,得出其非线性控制设计实质,即:通过非线性反馈对非线性控制系统在平衡点附近进行极点配置,通过反馈系数对目标量分别约束,从而迫使目标量收敛于各自的参考轨迹。以发电机励磁控制系统为例,给出应用实例,提出目标全息反馈非线性励磁控制(NECOHF)设计方案。仿真结果表明:通过极点配置进行设计,使得发电机具有良好的输出特性。
Operating mechanism of nonlinear control with objective holographic feedbacks （NCOHF） for single input multiple output （SIMO） system is discussed. NCOHF is applied in linear control system considering that linear system is exceptional case from nonlinear one. Furthermore, NCOHF principium for arranging system poles and solving tracking accuracies of all objective variables is analyzed in detail. Based on Hartman-Grobman theorem, nonlinear design essence about NCOHF is concluded： system poles at equilibrium point are arranged by nonlinear feedback; objective variables are forced to track their references by feedback coefficients. The pole arrangement concept of NCOHF is employed to tackle control problems for generator excitation system. Therefore, nonlinear excitation control with objective holographic feedbacks （NECOHF） is proposed. Simulation results show that good performances can be achieved for generator unit by pole arrangement.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2008年第4期59-64,共6页
Proceedings of the CSEE
基金
国家自然科学基金项目(50467001
50747026)
广西自然科学基金项目(0448025)
广西科学基金项目(桂科自0728027)~~
关键词
非线性控制
目标全息反馈
极点配置
多目标控制
电力系统
励磁控制
nonlinear control
objective holographic feedbacks
pole assignment
multi-objective control
power system
excitation control
