摘要
对接触网的刚度进行非线性最小二乘拟合,建立弓网系统非线性模型,采用微分几何理论对弓网间接触力波动幅度进行控制,提出一种输出—干扰解耦方法,通过适当的非线性坐标变换,将其转化为线性系统,并施以最优控制,仿真结果表明,控制效果良好。
The catenary stiffness is fitted with the nonlinear least square method and a nonlinear dynamical model of catenary/pantograph system is put forward. Output-perturbance uncoupled method educed from differential geometry is first used to study the high speed pantograph-catenary system. It is demonstrated that the nonlinear model is transferred to a simple linear system by a proper coordinate transform and the optimal control strategy is applied, the numerical results show that this method can reduce the fluctuations of the contact force, and the controller is effective.
出处
《机械强度》
EI
CAS
CSCD
北大核心
2005年第3期320-323,共4页
Journal of Mechanical Strength
基金
河北省教育厅科技发展项目(2004457)资助。~~
关键词
受电弓
接触网
非线性控制
微分几何
Pantograph
Catenary
Nonlinear control
Differential geometry
