检索结果-南通市图书馆

Linear active disturbance rejection control of heavy-haul train operation based on an interval type-2 fuzzy logic system model

引用

Transportation Safety and Environment 2022年第4期4卷 130-139页

作者： Yating Fu Wenxuan Rao Hui Yang State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure Nanchang 330013JiangxiChina School of Electrical and Automation Engineering East China Jiaotong UniversityNanchang 330013JiangxiChina

The heavy-haul train(HHT)has large capacity and high efficiency,which represents the level of freight and makes the amelioration of control performance a trend in various countries.Improving the model reliability and increasing the anti-disturbance ability of the operation controller are two main ways to improve the operation control accuracy of HHTs.Herein,to describe the large nonlinear system more precisely,an interval type-2 fuzzy logic system(IT2FLS)is introduced to obtain a dynamic model.Then,a linear active disturbance rejection controller(LADRC)is designed to achieve precise operational control.In addition,the‘bandwidth method’is combinedwith the sparrowsearch algorithm(SSA)to solve the difficulty of controller parameters adjustment.Afterwards,the stability analysis of the closed-loop control system is given.The simulation experiments are conducted based on data collected from HXD1 locomotives driven by excellent drivers.Results show that the speed tracking error is no more than 0.5 km/h,and demonstrate that the proposed method significantly improves the operational performance of HHTs.

关键词： heavy-haul train operational control IT2FLS LADRC sparrow search algorithm

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study on a segmented electro-pneumatic braking system for heavy-haul trains

引用

Transportation Safety and Environment 2020年第3期2卷 216-225页

作者： Wei Wei Yong Jiang Yuan Zhang Xubao Zhao Jun Zhang Dalian Jiaotong University 794 Huanghe RoadShahekou DistrictDalianLiaoning116208China Meishan CRRC Brake Science&Technology 683rd RoadScience and Technology Industrial ParkMeishanSichuan620010China

The large longitudinal impact of heavy-haul trains is the main factor limiting their development,and the asynchronous nature of train-braking systems is the main cause of this longitudinal impact.In this paper,a segmented electro-pneumatic braking solution fully compatible with the existing freight-train braking system in China is proposed to improve the synchrony of train-braking systems.A simulation model for this braking system is developed based on air-flow theory,the 120 distribution valve and electronic control devices.The braking characteristics obtained from simulations are compared to those from the train-brake testing platform,and show high fidelity.On this basis,the effects of the new braking system on the braking capacity and longitudinal impact of a 20000 t heavy-haul train are analysed by further simulation.The results show that during service brakes,the segmented electro-pneumatic braking system can increase the braking capacity by 4.2–24.7%and reduce the coupler force by 21.6–68.0%.Therefore,it can be seen that the segmented electro-pneumatic braking system is a new type of electro-pneumatic brake that meets the needs of the Chinese railway network.It solves the problem of the longitudinal impact of heavy-haul trains satisfactorily,and its compatibility with the existing braking system(resulting in a reduced modification workload)makes it possible to maintain normal operations on heavy-haul lines while trains undergo modification.

关键词： pneumatic brake electro-pneumatic brake air-flow heavy-haul train braking characteristics longitudinal dynamics coupler force

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Analysis of the different locomotive wireless multi-traction synchronous control systems for heavy-haul combined trains and their performance

引用

Transportation Safety and Environment 2020年第3期2卷 202-215页

作者： Wei Li Chunyang Chen Hui Li KaiWang Liang Xie Wenlu Zhang School of Traffic&Transportation Engineering Central South UniversityChangsha 410075HunanChina Signal&Communication Research Institute China Academy of Railway SciencesBeijing 100081China School of Computer Science and Engineering Central South UniversityChangsha 410075HunanChina Shuohuang Railway Development Co. Ltd.Suning 062350HebeiChina

This paper looks at the heavy-haul combined train composed of different types of locomotives and its distributed power control system with a combination of 800 MHz and TD-LTE wireless communication.It analyses some key characteristic parameters that affect the synchronism and communication of the differential wireless multi-traction synchronous control systems for heavy-haul combined trains.At the same time,in order to reduce the latency of instruction and information transfer between different types of locomotives,improve the time-limit certainty of wireless transmission and optimize the control quality of multi-traction control systems for heavy-haul combined trains,a synchronism optimization strategy based on the Markov decision process on the basis of Petri networkconstruction is proposed.Relevant experiments and tests are carried out to verify the effectiveness of the synchronism optimization of the control system,which provides a guarantee for improving the differential wireless multi-traction synchronous control system for combined trains and optimizing train control.

关键词： heavy-haul train mixed-traction locomotive wireless multi-traction control locomotive synchronism running Markov decision process

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Monitoring energy usage of heavy-haul iron ore trains with on-board energy meter for improving energy efficiency

引用

Railway Sciences 2023年第2期2卷 243-256页

作者： Philipp Geiberger Zhendong Liu Mats Berg Department of Engineering Mechanics KTH Royal Institute of TechnologyStockholmSwedenand Christoph Domay MalmtrafikLKABKirunaSweden

Purpose-For billing purposes,heavy-haul locomotives in Sweden are equipped with on-board energy meters,which can record several parameters,e.g.,used energy,regenerated energy,speed and position.Since there is a strong demand for improving energy efficiency in Sweden,data from the energy meters can be used to obtain a better understanding of the detailed energy usage of heavy-haul trains and identify potential for future improvements.Design/methodology/approach-To monitor energy efficiency,the present study,therefore,develops key performance indicators(KPIs),which can be calculated with energy meter data to reflect the energy efficiency of heavy-haul trains in operation.Energy meter data of IORE class locomotives,hauling highly uniform 30-tonne axle load trains with 68 wagons,together with additional data sources,are analysed to identify significant parameters for describing driver influence on energy usage.Findings-Results show that driver behaviour varies significantly and has the single largest influence on energy usage.Furthermore,parametric studies are performed with help of simulation to identify the influence of different operational and rolling stock conditions,e.g.,axle loads and number of wagons,on energy usage.Originality/value-Based on the parametric studies,some operational parameters which have significant impact on energy efficiency are found and then the KPIs are derived.In the end,some possible measures for improving energy performance in heavy-haul operations are given.

关键词： Energy efficiency heavy-haul train On-board energy meter

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：