The Influence of New Functional Properties of Active-Adaptive Electrical Networks on the Correctness of Selection and Verification of Conductor Cross-Sections by Existing Methods

Varygina, Aleksandra O.; Savina, Natalia

doi:10.1109/fareastcon.2018.8602740

Cited by 3 publications

(2 citation statements)

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“…Рассмотрим, с чем придётся столкнуться инженеру при разработке и экспертизе проектной документации в части методических подходов к проектированию ВЛ нового поколения. В [24,25] авторами проведён анализ методов выбора сечений проводников и на конкретном примере доказано, что ни метод экономической плотности тока (ЭПТ), ни метод экономических токовых интервалов (ЭТИ) выбрать сечение инновационного проводника не позволяет. Даже пересчёт существующих значений экономической плотности тока и экономических токовых интервалов не позволит решить проблему.…”

Section: методические подходы к проектированию влэпunclassified

Testing the Applicability of Existing Approaches to Next-Gen OPL Design

2019

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Power engineering currently seeks, among other things, to use innovative energy-efficient technology and to benefit from the R&D potential associated with grids. Conventional solutions based on general design methodologies are a hindrance in this respect, as they prevent the strategic objectives from having the expected quantitative and qualitative effects in full. Requirements to the reliability, cost-effectiveness, and performance of grid facilities are ever stricter, specifically those to overhead power lines (OPL). Next-gen power lines are proposed as a solution. What makes a power line design next-gen? An innovative wire of cost-effective crosssection, a special tower design, state-of-the-art insulation and ground wire, if necessary. The paper seeks to investigate how innovative OPL components affect the design outcomes from the standpoint of common guidelines and standards. The research uses a systematic approach and presents the specifics of innovative next-gen OPL components to show that standards are sometimes obsolete and do not match the today's state-of-the-art solutions. The paper advocates the development of newer standards and guidelines on OPL design.

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Section: методические подходы к проектированию влэпunclassified

Testing the Applicability of Existing Approaches to Next-Gen OPL Design

2019

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“…In practice, the selection of the optimum cross-sectional area and type of conductor is a difficult task because of the broad set of parameters, which are seldom known. Studies devoted to the optimization problem of minimizing the capital costs of a TL with respect to the selection of the optimum cross-sectional area of the conductor applied deterministic [15,16] and stochastic methods. For instance, the proposed stochastic approach to selecting the conductor cross-section, which takes into account random variables such as the power line load, electricity price, and ambient temperature, was presented in References [17][18][19]; the method of selecting the conductor and tower configuration from an overall system point of view was considered in Reference [20]; and the methodology for selecting both bare wire conductors and ground wires, their spatial arrangement, and the topology of the tower for a project with compact overhead transmission lines with multiple circuits was presented in Reference [21].…”

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Evaluation Study of Potential Use of Advanced Conductors in Transmission Line Projects

Beryozkina

2019

Energies

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Transmission networks recently faced new technical and economic challenges. The direct use of advanced technologies and modern methods could solve these issues. This paper discusses the potential application of straightforward technology such as high-temperature low-sag conductors (HTLScs) as an additional measure for the protection and effective operation of overhead power lines. An evaluation was conducted to determine an approach for selecting the cross-sectional area and type of conductor with respect to a fault current limitation. It showed the potential benefits of using HTLScs based on an assessment of the throughput capacity and up-front capital costs. A case study considered two scenarios: the construction of a new power line and reconductoring of the existing one. The data for a real project with two overhead power lines were used. The obtained results are analyzed and discussed in detail in this paper.

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Calculation the current carrying capacity of the new generation overhead lines conductors

Varygina

Savina

2020

«Izvestiya vysshikh uchebnykh zavedenii. PROBLEMY ENERGETIKI»

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Currently, there is an increase in power flows along power lines. An important task for the development of the power grid complex is to increase the current-carrying capacity of existing power lines. The use of advanced conductors has become a successful technical solution for this purpose. "New generation conductors" are modern conductors that have advanced mechanical and electrical properties and characteristics. Thus, it has become important to have information about the maximum operation temperature and current limits of the overhead line with new conductors. The approximate current-carrying capacity in Amperes is the value of current at which the conductor temperature reaches its maximum permissible value. It determines the maximum current load of overhead power lines. For traditional steelaluminum conductors, there are several methodological approaches to determining the maximum current load. This fact complicates the definition of an approach to calculating the current carrying capacity for advanced conductors. Nevertheless, the general basis of all methodological approaches is the thermal balance of the conductor. The purpose of this article is to assess the possibility of adapting the method of calculating the approximate currentcarrying capacity of traditional conductors to the calculation of advanced conductors. The article deals with advanced conductors of various brands of comparable cross-section with the classic ACSR 240/39. This work provides information about the selected conductors, their characteristics and design features. The paper shows a mathematical model for calculating the approximate current-carrying capacity of a conductor and shows calculating results for selected conductors. According to the results of analysis and calculations, the adaptation of the presented mathematical model is possible if we refine its parameters and coefficients.

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The Influence of New Functional Properties of Active-Adaptive Electrical Networks on the Correctness of Selection and Verification of Conductor Cross-Sections by Existing Methods

Cited by 3 publications

References 1 publication

Testing the Applicability of Existing Approaches to Next-Gen OPL Design

Testing the Applicability of Existing Approaches to Next-Gen OPL Design

Evaluation Study of Potential Use of Advanced Conductors in Transmission Line Projects

Calculation the current carrying capacity of the new generation overhead lines conductors

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