受电弓主动控制综述

Review of pantograph active control

为了抑制弓网耦合振动,提高高速列车集流能力,综述了受电弓主动控制研究过程中弓网系统建模、控制目标与测量系统、控制算法、操动机构及其安装、试验验证等5个关键环节的研究进展,分析了弓网模型对接触力仿真结果精度和计算时间的影响、不同控制算法的优缺点和操动机构的选择方法,展望了受电弓主动控制在模型优化、算法设计和信号修正等方面的未来研究重点。分析结果表明:在受电弓主动控制研究中,弓网模型的建立要同时考虑对系统关键因素的表征与计算效率,控制目标的选取以能反映受流质量为准则,量测系统需尽量减少机车扰动对量测结果可靠性的影响,控制结构不能影响原有升弓机构的工作,这些与控制算法的实时性与执行机构的高效性一起共同决定了受电弓主动控制的实用效能。

In order to control pantograph-catenary coupling vibration and improve the current collection quality of high-speed train,the modeling of pantograph-catenary system,the control objectives and the measurement system,the control algorithms,the actuator and its installation, and the experimental verification were reviewed in the active control of pantograph.The impact of pantograph-catenary model on the computation precision and time in contact force simulation, the advantages and disadvantages of different control algorithms and the choice methods of operating mechanism were commented.The future research directions of active control were prospected from model optimization, algorithm design, signal modification and some other aspects.Analysis result shows that in the active control of pantograph,the key factors of pantograph-catenary system and the calculation efficiency must be considered in pantograph-catenary modeling,the control target should reflect current collection quality,measurement system should decrease the influence of locomotive disturbance on the reliability of measurement result,and control mechanism can not impact the work of hoisting mechanism.The critical factors that decide pantograph-catenary system to be successfully applied in actual engineering are real-time control algorithms and high-efficiency actuators.10 figs,54 refs.