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Evaluation of flexible rail rigidity and stress-strain state of elements of string rail track structure at the uSky center in Sharjah (UAE) 沙迦uSky中心线轨轨道结构柔性轨刚度及单元应力-应变状态评价
Pub Date : 2022-10-03 DOI: 10.17816/transsyst20228345-62
A. E. Unitsky, Aliaksandr S. Khlebus, M. I. Tsyrlin
Annotation: The study describes the arrangement of the string rail track structure and string rail; a test section of the track structure with flexible rail at the uSky Transport Center in Sharjah (UAE) is presented. Aim: analysis of rigidity of flexible rail under action of transport load and its dependence on temperature impact, as well as calculation of forces in elements of flexible rail are performed; the stress range and durability of the flexible rail under cyclic transport load from Unicar-T (tropical) are determined. Methods: The calculation was made using the ANSYS finite element analysis software package. Results: Analysis of the calculation results showed high efficiency and reliability of the proposed transport solution, taking into account the ratio of the material intensity of the string rail to the bearing capacity of the track structure.
注:本研究描述了串轨轨道结构和串轨的布置;介绍了在沙迦(阿联酋)的uSky运输中心的柔性轨道结构试验段。目的:分析运输荷载作用下柔性钢轨的刚度及其对温度冲击的依赖关系,并进行柔性钢轨各单元的受力计算;确定了柔性钢轨在热带独角车循环运输荷载作用下的应力范围和耐久性。方法:采用ANSYS有限元分析软件包进行计算。结果:计算结果分析表明,在考虑串轨材料强度与轨道结构承载能力之比的情况下,提出的运输方案效率高、可靠性好。
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引用次数: 0
Features of the assessment of socio-economic effects arising from the construction of lines of freight maglev transport 货运磁悬浮线路建设的社会经济效益评价特点
Pub Date : 2022-10-03 DOI: 10.17816/transsyst202283142-156
S. Smirnov, O. Smirnova
Background: Transport is a sector of the economy that is subject to general economic laws, including with regard to issues related to investing in real assets, developing means of production, and ensuring expanded reproduction. Along with this, transport is a strategic sector at the state level, ensuring the functioning of the economy as a whole. In this regard, there are certain contradictions associated with the assessment of the effectiveness of investments in transport infrastructure. In most cases, investments in transport infrastructure are valued similarly to investments in a business project. After the issuance of Decree of the Government of the Russian Federation No. 1512 dated November 26, 2019, the approach to evaluating the effectiveness of investments with state participation has expanded, but it does not fully cover the issues of project effectiveness for the state. Along with this, the classical methods for evaluating the effectiveness of investment projects are subject to great subjectivity in relation to the calculation of social effects, as a result of which their applicability to projects at the national economic level is ineffective. Aim: to consider the list of effects arising from the construction of transport infrastructure and determine the methodology for calculating the effects for the state. Materials and methods: the research methodology is based on the analysis of methods for financial and economic evaluation of investment projects, as well as macroeconomic methods. The information base of the study is based on the official legal and methodological information of the authorities of the Russian Federation. Results: as a result of the study, a list of effects for the state arising from the implementation of transport infrastructure development projects was determined, and the procedure for their calculation was substantiated. Conclusion: the study confirms that the currently used methods for evaluating the effectiveness of investments in infrastructure projects for the state do not fully and objectively reflect economic realities. The proposed approach to the assessment will make it possible to carry out a comprehensive assessment of the socio-economic effects from the construction of cargo maglev transport lines and improve the quality of management decisions in the transport sector.
背景:交通运输是一个受一般经济规律约束的经济部门,包括与实物资产投资、发展生产资料和确保扩大再生产有关的问题。与此同时,运输是国家一级的战略部门,确保整个经济的运作。在这方面,在评估运输基础设施投资的有效性方面存在某些矛盾。在大多数情况下,对交通基础设施的投资与对商业项目的投资价值相似。俄罗斯联邦政府于2019年11月26日颁布第1512号法令后,扩大了评估国家参与投资有效性的方法,但并未完全涵盖国家的项目有效性问题。与此同时,传统的投资项目有效性评价方法在社会效应的计算上存在较大的主观性,在国民经济层面对项目的适用性不强。目的:考虑交通基础设施建设产生的一系列影响,并确定计算国家影响的方法。材料和方法:研究方法是基于对投资项目财务和经济评价方法的分析,以及宏观经济方法。本研究报告的资料基础是俄罗斯联邦当局提供的官方法律和方法资料。结果:研究结果确定了实施交通基础设施发展项目对国家产生的影响清单,并确定了计算这些影响的程序。结论:该研究证实,目前用于评估国家基础设施项目投资有效性的方法不能充分客观地反映经济现实。拟议的评估方法将能够对货物磁悬浮运输线路建设的社会经济影响进行全面评估,并提高运输部门管理决策的质量。
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引用次数: 2
Digitalization of railway station complexes 火车站综合体数字化
Pub Date : 2022-10-03 DOI: 10.17816/transsyst20228331-44
Y. Nikonova, Elena A. Proskuryakova
Background: Digital railway is the most important global trend in the development of railway transport. Smart station is part of the digital railway concept. Currently, there is no unambiguous solution to the problem of how to introduce advanced information technologies to improve the efficiency and level of service of the railway transport system in the station complexes. The construction of new and reconstruction of existing station complexes in accordance with the concept of smart station is also relevant for Russian railways. Aim: identify priority areas for the development of station complexes; to characterize the main measures for the digitalization of the management system of railway stations of Russian Railways. Materials and Methods: in the course of the study, a systematic approach, analysis, synthesis, methods and tools for statistical data processing were used: tabular method, methods for calculating average and relative values, methods for analyzing dynamics. Activities for the digitalization of station management systems were evaluated on the basis of methods for evaluating the effectiveness of investment projects in the field of railway transport. The information base consists of the works of domestic and foreign scientists in the field of digitalization of railways, the development of railway stations, as well as strategic documents of Russian Railways: Long-term program for the development of railway stations of the Directorate of Railway Stations a branch of Russian Railways for the period up to 2025; The concept of efficient use and development of railway stations for the period up to 2030; Development strategy of the Russian Railways holding for the period up to 2030; Long-term development program of Russian Railways until 2025. Results: the world trends in the development of station complexes are considered; clarified the essence of the category smart station; the characteristics of the main directions of digitalization of the station complexes of Russian Railways are given. Conclusion: the concept of smart station is the basis for changes in the organization of the activities of station complexes being implemented in modern conditions. The introduction of digitalization contributes to an increase in the efficiency of all types of activities of the station complexes of Russian Railways.
背景:数字化铁路是全球铁路运输发展的重要趋势。智能车站是数字铁路概念的一部分。目前,如何在车站综合体中引入先进的信息技术来提高铁路运输系统的效率和服务水平,并没有明确的解决方案。根据智能车站的概念,新建和改造现有车站综合体也与俄罗斯铁路相关。目的:确定发展车站综合体的优先区域;阐述了俄罗斯铁路车站管理系统数字化的主要措施。材料和方法:在研究过程中,采用了系统的方法、分析、综合、统计数据处理的方法和工具:表格法、平均值和相对值计算方法、动态分析方法。根据铁路运输领域投资项目有效性评估方法,对车站管理系统数字化活动进行了评估。该信息库包括国内外科学家在铁路数字化、火车站发展领域的工作成果,以及俄罗斯铁路的战略文件:俄罗斯铁路部门铁路车站局火车站发展长期计划(至2025年);至2030年有效使用和发展火车站的概念;俄罗斯铁路控股公司到2030年的发展战略2025年前俄罗斯铁路的长期发展计划。结果:考虑了世界车站综合体的发展趋势;明确了品类智能站的本质;介绍了俄罗斯铁路车站综合体数字化发展的主要方向特点。结论:智能车站的概念是在现代条件下实施的车站综合体活动组织变化的基础。数字化的引入有助于提高俄罗斯铁路车站综合体所有类型活动的效率。
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引用次数: 0
The simulation of electromagnetic interaction of the components of transport electrotexnical complex 输运机电复合物各组分电磁相互作用的模拟
Pub Date : 2022-10-03 DOI: 10.17816/transsyst20228389-104
Aleksey V. Shandybin
Background: The transport electrical complex includes many interconnected infrastructure components that ensure the safety of the operation of the entire system. The issues of protection against electromagnetic influences are becoming more relevant with the growth of traffic intensity. Aim: Evaluation of the degree of electromagnetic impact of traction networks on the cable line. Materials and Methods: Mathematical modeling is carried out using the finite element method and the COMSOL Multiphysics software package. Results: Current distributions in two typical traction power networks are obtained, taking into account the presence of a cable line in the zone of influence. The generated electric and magnetic fields and the parameters of the current induced on the sheath of the cable line are determined. Conclusion: The use of mathematical modeling makes it possible to decompose the influences into constituent factors and reveal the internal structure of the mechanism of interaction between the components of the transport electrical complex. The simulation results allow us to confidently fix the induced currents from the force electromagnetic fields on the cable sheath. These studies can be used in the development of modern means of protection.
背景:交通电气综合体包括许多相互连接的基础设施组件,以确保整个系统的安全运行。随着交通强度的增加,防止电磁影响的问题变得越来越重要。目的:评价牵引网络对电缆线路的电磁影响程度。材料与方法:采用有限元法和COMSOL Multiphysics软件包进行数学建模。结果:得到了两种典型牵引电网在影响区存在电缆的情况下的电流分布。确定了所产生的电场和磁场以及在电缆护套上感应电流的参数。结论:利用数学模型可以将影响因素分解为组成因素,揭示输运电复合体各组分相互作用机制的内部结构。仿真结果使我们能够自信地确定力电磁场在电缆护套上产生的感应电流。这些研究可用于发展现代保护手段。
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引用次数: 0
Braking forces of a traction linear induction motor with an adjustable resistance of a short-circuite winding of the secondary element 具有次级元件短路绕组的可调电阻的牵引线性感应电动机的制动力
Pub Date : 2022-10-03 DOI: 10.17816/transsyst20228378-88
V. A. Solomin, A. Solomin, M. Kolmykova, A. A. Chekhova
Background: The study of the properties of linear traction drives for new types of rolling stock seems to be an urgent task. Linear motors are multifunctional and are capable of providing both traction and braking of promising high-speed rolling stock. Aim: Investigation of the braking characteristics of an adjustable traction linear induction motor with variable resistance by a short-circuited winding of the secondary element. Methods: Analytical methods have been used to obtain relations for calculating the braking forces of an adjustable linear induction motor with a short-circuited winding of the secondary element. Results: The obtained ratios made it possible to calculate the braking forces of linear induction motors. Conclusion: The results of calculating the braking forces of adjustable linear induction motors make it possible to reasonably choose the braking modes of a new type of rolling stock.
背景:新型轨道车辆直线牵引传动特性的研究是一项紧迫的任务。直线电机是多功能的,能够为有前途的高速机车提供牵引和制动。目的:研究二次元件短路绕组对可变电阻可调牵引直线感应电动机制动特性的影响。方法:采用解析法,得到二次元件绕组短路时可调直线感应电动机制动力的计算关系式。结果:所得比值可用于直线感应电动机制动力的计算。结论:可调直线感应电动机制动力计算结果为合理选择新型机车的制动方式提供了依据。
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引用次数: 0
Simulation of the maglev suspension dynamic characteristics during movement, acceleration and deceleration 磁悬浮悬架运动、加减速过程动力学特性仿真
Pub Date : 2022-10-03 DOI: 10.17816/transsyst20228363-77
Irina V. Martirosian, S. Pokrovskii, M. Osipov, A. Starikovskii, I. Rudnev
Background: When developing high-speed transport systems based on the magnetic levitation phenomenon, it is necessary to take into account a huge number of factors that affect the characteristics and stability of this type systems. One of the simplest and most convenient methods for achieving these goals is numerical simulation. Aim: simulation of the dynamic characteristics of a magnetic suspension based on a high-temperature superconductor during movement, acceleration and deceleration. Methods: numerical analysis of the magnetic levitation system was performed by the finite element method in the Comsol Multiphysics engineering simulation software. Results: during straight motion, lateral vibrations do not exceed 15 %, and the suspension speed and mass increase does not have a significant effect on the vibrations amplitude. In the case of vertical oscillations, the platform mass and speed increase leads to an increase in the vibration resistance of the system. With an increase in the turning radius of the track, the maximum possible speed of entering the turn without detaching the suspension from the magnetic track increases non-linearly. Conclusion: The developed numerical model makes it possible to predict the dynamic characteristics of levitation transport and can be applied to systems of various scales.
背景:在开发基于磁悬浮现象的高速运输系统时,需要考虑影响这类系统特性和稳定性的众多因素。实现这些目标的最简单和最方便的方法之一是数值模拟。目的:模拟高温超导体磁悬浮在运动、加速和减速过程中的动态特性。方法:在Comsol Multiphysics工程仿真软件中采用有限元法对磁悬浮系统进行数值分析。结果:直线运动时,横向振动不超过15%,悬架速度和质量增加对振动幅值的影响不显著。在垂直振动情况下,平台质量和速度的增加导致系统抗振能力的增加。随着轨道转弯半径的增加,在不从磁性轨道上分离悬架的情况下进入转弯的最大可能速度呈非线性增加。结论:所建立的数值模型能够较好地预测悬浮输运的动力学特性,可应用于不同尺度的系统。
{"title":"Simulation of the maglev suspension dynamic characteristics during movement, acceleration and deceleration","authors":"Irina V. Martirosian, S. Pokrovskii, M. Osipov, A. Starikovskii, I. Rudnev","doi":"10.17816/transsyst20228363-77","DOIUrl":"https://doi.org/10.17816/transsyst20228363-77","url":null,"abstract":"Background: When developing high-speed transport systems based on the magnetic levitation phenomenon, it is necessary to take into account a huge number of factors that affect the characteristics and stability of this type systems. One of the simplest and most convenient methods for achieving these goals is numerical simulation. \u0000Aim: simulation of the dynamic characteristics of a magnetic suspension based on a high-temperature superconductor during movement, acceleration and deceleration. \u0000Methods: numerical analysis of the magnetic levitation system was performed by the finite element method in the Comsol Multiphysics engineering simulation software. \u0000Results: during straight motion, lateral vibrations do not exceed 15 %, and the suspension speed and mass increase does not have a significant effect on the vibrations amplitude. In the case of vertical oscillations, the platform mass and speed increase leads to an increase in the vibration resistance of the system. With an increase in the turning radius of the track, the maximum possible speed of entering the turn without detaching the suspension from the magnetic track increases non-linearly. \u0000Conclusion: The developed numerical model makes it possible to predict the dynamic characteristics of levitation transport and can be applied to systems of various scales.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129867896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of railways digitalisation on the national economy development 铁路数字化对国民经济发展的影响
Pub Date : 2022-07-06 DOI: 10.17816/transsyst202282135-148
I. Anokhov, O. Rimskaya, A. V. Khomov
Background: The article examines the existing and designed technologies of railway transport, positioned as digital in the specialised literature Aim: Study of the process of digitalization of railways, considered as a condition for the digitalization of the entire national economy. The object of the study is freight rail transport in Russia. Methods: To analyze the digitalization process of railways, modeling of a closed production-consuming reproduction loop was applied. Results: An important condition for the digitalization of the national economy is the presence of a conditionally closed economic circuit, served mainly by rail and connecting consumers and the entire chain of producers. Such contours should be focused on the absolute needs of the population, which are the most predictable and stable from a quantitative point of view. This, in turn, contributes to the implementation of production and transport activities in a routine manner without human intervention based on digital technologies. The organizational allocation of such closed economic circuits, according to the authors, will make it possible to move on to the digitalization of the national economy. Conclusion: Railway transport is most suitable for the design of such closed economic circuits and their subsequent digitalization, because technologically isolated from the external environment as much as possible.
背景:本文考察了现有的和设计的铁路运输技术,在专业文献中定位为数字化。目的:研究铁路数字化的过程,作为整个国民经济数字化的条件。本研究的对象是俄罗斯的货运铁路运输。方法:对铁路数字化过程进行分析,建立了一个封闭的生产-消费再生产循环模型。结果:国民经济数字化的一个重要条件是有条件的封闭经济回路的存在,以铁路为主要服务,连接消费者和生产者的整个链条。这种等高线应集中于人口的绝对需要,因为从数量的角度来看,这些需要是最可预测和最稳定的。这反过来又有助于在没有人为干预的情况下,以常规方式实施基于数字技术的生产和运输活动。根据作者的说法,这种封闭经济回路的组织配置将使国民经济的数字化成为可能。结论:铁路运输在技术上尽可能地与外部环境隔离,最适合这种封闭经济回路的设计及其后续的数字化。
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引用次数: 0
Transformational leadership and sustainable development of russian transport systems 转型领导和俄罗斯交通系统的可持续发展
Pub Date : 2022-06-29 DOI: 10.17816/transsyst20228292-111
N. Zhuravleva
Background: The Sustainable Development (ESG) issue, declared by the UN in 2015 and approved by the Russian Government in 2020, is going through challenging times: the drivers and incentives that have been driving national economies to growth are undergoing significant change. In a situation where many infrastructure organisations have left or temporarily withdrawn from cooperation with Russian companies, the question arises as to how to fill this gap so that companies choosing to continue their movement in the ESG agenda can have the appropriate infrastructure and support. Aim: The scientific hypothesis of the influence of transformational leadership on the activity of sustainable development processes (ESG) and the development of tools to assess this influence on the effectiveness of transport organisations' operational and business models. Methods: The methodology of the work is based on the development of the theory of transformational leadership as a new type of effective management activity, the concept of evolution of digital platforms and ecosystems. Results: The positions of the scientific hypothesis on the impact of transformational leadership tools on the efficiency of operational and business models of transport organisations implementing sustainable development projects and the establishment of a new type of management activity have been confirmed. It has been proved that the existing transactional leadership metrics (KPIs and deviation management) cease to work in the current environment. A model has been developed to quantify the appropriateness of the impact of transformational leadership on sustainable development goals of transport companies. Conclusion: It has been substantiated that transformational leadership that ensures the principle of unity, intersectorality and resource conservation becomes a new type of management activity that ensures growth of long-term returns from social and 'green investments'. Sustainable development projects of Russian transport companies have been systematised and the conclusion about the superiority of investing in long-term development projects over projects that ensure short-term profit generation has been substantiated.
背景:联合国于2015年宣布并于2020年获得俄罗斯政府批准的可持续发展(ESG)问题正在经历充满挑战的时期:推动国民经济增长的动力和激励措施正在发生重大变化。在许多基础设施组织已经离开或暂时退出与俄罗斯公司合作的情况下,问题是如何填补这一空白,以便选择继续推进ESG议程的公司能够获得适当的基础设施和支持。目的:变革型领导对可持续发展过程(ESG)活动影响的科学假设,以及评估这种对运输组织运营和商业模式有效性影响的工具的开发。方法:工作的方法论是基于变革型领导作为一种新型有效管理活动的理论发展,数字平台和生态系统的进化概念。结果:关于变革型领导工具对实施可持续发展项目的运输组织的运营和商业模式效率以及建立新型管理活动的影响的科学假设的立场已经得到证实。事实证明,现有的事务性领导度量(kpi和偏差管理)在当前环境中不再起作用。已经开发了一个模型来量化变革型领导对运输公司可持续发展目标的影响的适当性。结论:事实证明,确保统一、交叉和资源节约原则的变革型领导成为一种新型的管理活动,确保社会投资和“绿色投资”的长期回报增长。俄罗斯运输公司的可持续发展项目已被系统化,投资于长期发展项目优于确保产生短期利润的项目的结论已得到证实。
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引用次数: 1
Russian Maglev in integrated transport system 俄罗斯磁悬浮综合运输系统
Pub Date : 2022-06-29 DOI: 10.17816/transsyst202282124-134
S. Smirnov, O. Smirnova
Background: Depending on the observed economic and geopolitical situation, before moving to a higher level, there were dependencies on excessive dependence between its regions in conditions of limited resources. A prerequisite for achieving national stability and security is the development of an integrated transport system of the country based on deep cooperation of all modes of transport, which makes it possible to effectively meet the demand for transportation both in technological and economic terms. At the same time, scientific and technological progress should not lead to the breakdown of connections in the transport system, it has a progressive nature, the possibility of interaction between the interaction of various modes of transport - rail, water, automobile, aviation, and prospective, in particular, maglev. Aim: to consider the possibility of including maglev transport, made according to Russian technology, into the integrated transport system of Russia as a priority mode of transport, to determine the principles of an integrated transport system and to rank the types of transport according to the degree of their compliance with national interests. Materials and Methods: the methodology of the study is based on the analysis of methods for evaluating the effectiveness of modes of transport, as well as the analysis of the technical and technological features of modes of transport. The information base of the study is based on the statistical information of the state statistics bodies of the Russian Federation, reports of companies participating in the transport industry, as well as data from open sources. Results: as a result of the research, substantiated the most complete compliance of the Russian Maglev transport system with national interests, the interests of business and society, identified promising niches for the use of the technology. Conclusion: the study confirms that the Russian Maglev technology should form the basis of the integrated transport system of Russia, which will ensure the country's transport security and high economic efficiency of cargo transportation.
背景:根据观察到的经济和地缘政治形势,在进入更高层次之前,在资源有限的条件下,其区域之间存在过度依赖。实现国家稳定和安全的一个先决条件是发展一个以所有运输方式的深入合作为基础的国家综合运输系统,从而有可能在技术和经济方面有效地满足对运输的需求。同时,科学技术的进步不应导致交通系统中联系的中断,它具有进步性,各种交通方式之间相互作用的可能性——铁路、水路、汽车、航空,以及前瞻性的,特别是磁悬浮。目的:考虑将根据俄罗斯技术制造的磁悬浮运输作为优先运输方式纳入俄罗斯综合运输系统的可能性,确定综合运输系统的原则,并根据其符合国家利益的程度对运输类型进行排序。材料和方法:本研究的方法论是基于对运输方式有效性评估方法的分析,以及对运输方式的技术和工艺特征的分析。本研究报告的资料基础是俄罗斯联邦国家统计机构的统计资料、参与运输业的公司的报告以及来自公开来源的数据。结果:作为研究的结果,证实了俄罗斯磁悬浮运输系统最完全符合国家利益、商业利益和社会利益,并确定了该技术使用的有前途的利基。结论:研究证实,俄罗斯磁悬浮技术应构成俄罗斯综合运输系统的基础,这将确保国家的运输安全和货物运输的高经济效率。
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引用次数: 1
Computer simulation of long line with loss in steady harmonic mode at active load 有功负荷下稳定谐波模式下损耗长线路的计算机模拟
Pub Date : 2022-06-29 DOI: 10.17816/transsyst20228255-69
Victoria V. Krivorotova
Background: The implementation of projects to create long-range power systems requires the greatest possible study of not only the technical feasibility of long lines, but also the features of energy transmission along these lines. Such studies can be carried out in the field, using a physical experiment or using computer simulation. The first is limited by the complexity of the experiment, the lack of access to real measurements. Unlike a physical experiment, computer simulation is devoid of these problems: it makes it quite easy not only to model a long line, but also to study it under various operating modes. The practical significance of this work is the applicability of the proposed method in the educational process when students of energy specialties of transport universities perform research on lines with distributed parameters to solve subsequent problems in the development or development of new energy systems of great extent. Aim: Building a computer model of a long line and developing a method for studying various modes of its operation under various loads, including idling and short circuit. Methods: Computer modelling. Results: A computer model of a line with distributed parameters has been constructed, which allows one to study it under various modes. Conclusion: As part of the development of energy systems, the relevance of developing and modeling new methods for studying various modes in such circuits increases many times over. At the same time, newly developed methods should be applicable in the educational process. The article describes computer simulation and study of a long line under various active loads of the distribution of the effective value of the voltage along the line during its transmission, equal to half the wavelength (half-wave line). Research in this direction has not only scientific significance, but also practical, since it is possible to reasonably develop new models of long lines, as well as solve problems in the field of studying non-stationary (transient) operating modes of long lines.
背景:建立远距离电力系统的项目的实施不仅需要对长距离线路的技术可行性进行最大程度的研究,而且需要对沿这些线路传输能量的特点进行最大程度的研究。这种研究可以在实地进行,使用物理实验或使用计算机模拟。第一种方法受到实验复杂性的限制,缺乏获得实际测量结果的途径。与物理实验不同,计算机模拟没有这些问题:它不仅可以很容易地模拟一条长线,而且可以很容易地在各种操作模式下研究它。本文的实际意义在于,所提出的方法在交通院校能源专业学生对分布参数线路进行研究的教学过程中具有适用性,在很大程度上解决了新能源系统开发或开发中的后续问题。目的:建立长线路的计算机模型,研究其在空转和短路等不同负载下的各种运行模式。方法:计算机建模。结果:建立了具有分布参数的直线的计算机模型,使人们能够在各种模式下对其进行研究。结论:作为能源系统发展的一部分,开发和建模用于研究此类电路中各种模式的新方法的相关性增加了许多倍。同时,应将新开发的方法应用于教育过程中。本文描述了计算机模拟和研究了一条长线在各种主动负载作用下,其传输过程中电压有效值沿线路的分布,等于半波长(半波线)。该方向的研究不仅具有科学意义,而且具有现实意义,因为它可以合理地开发新的长线路模型,并解决长线路非平稳(瞬态)运行模式研究领域的问题。
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引用次数: 0
期刊
Modern Transportation Systems and Technologies
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