摘要
受电弓与接触网的滑动接触是目前高速铁路电力机车的主要取流方式。为保证受电弓-接触网(弓网)系统的接触稳定性,对高速受电弓实施有效的主动控制是提高弓网受流质量的一种潜在措施。本文建立具有刚度、质量参数时变特征的非线性接触网模型,以准确模拟高速列车运行过程中的随机扰动。在模型基础上,采用滑模控制算法进行高速受电弓的主动控制,并引入扰动补偿策略以降低弓网接触力在随机扰动影响下的波动程度。仿真结果显示,所提基于滑模控制的高速受电弓主动控制方法可有效降低接触力波动,减少弓网离线率。
The sliding contact between the pantograph and the overhead catenary is the only way for the electric vehicle to collect current,which is easily influenced by the stochastic disturbances.In this paper,a catenary model with time-varying mass and stiffness is established and the pantograph is considered a 2-degree of freedom(DOF) model.And the uncertain disturbance is included to compensate the perturbations of nonlinear effect from catenary to pantograph.A sliding mode surface is properly defined to reduce the variation of contact force.In order to decrease the effect of other uncertain disturbance,a disturbance compensator is included to estimate the disturbance in each discrete time step.Several numerical examples indicate that the proposed controller can effectively reduce the contact force fluctuation,as well as eliminate the contact loss.
作者
刘涛
鲁小兵
张佳怡
LIU Tao;LU Xiaobing;ZHANG Jiayi(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031)
出处
《电气技术》
2022年第3期57-62,69,共7页
Electrical Engineering
基金
中铁二院工程集团有限责任公司科研项目(KDNQ212002)。
关键词
高速铁路
接触网
受电弓
滑模控制
接触力
high-speed railway
catenary
pantograph
slide mode control
contact force
