Life cycle cost analysis of transmission and distribution systems

Jeromin, Ingo; Balzer, Gerd; Backes, Jurgen; Huber, Richard

doi:10.1109/ptc.2009.5282168

Cited by 20 publications

(4 citation statements)

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“…As a result, the economic current density has to be updated with the aim of accurately representing both the condition of the market economy and the current load consumption patterns. Furthermore, the adoption of the lifetime cost (LTC) has been prevalent within the energy sector as a means of optimally sizing the conductor in transmission line schemes [4], [5]. The lifetime cost is composed of two primary elements, namely, the initial capital expenditure (ICE) and the overall operating cost (OPC) [6].…”

Section: Introductionmentioning

confidence: 99%

Deployment of Lifetime Cost Analysis to Reassess Economic Current Density in the Presence of Vietnam’s Market Economy

Nang-Van Pham

2024

jes

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A decent choice of conductor size for overhead power transmission lines can provide economic advantages throughout the project’s lifetime. One of the crucial criteria for sizing conductors is economic current density. In Vietnam, the electricity industry has extensively utilized the 1950s-era economic current density that ignores the value of cash flow at diverse points in time and applies the assumption of the constant electricity tariff and wire cost. These costs, nonetheless, are likely to greatly impact the figures of economic current density; as a result, these figures must be modified. This paper puts forward novel figures of economic current density that are systematically determined on the basis of lifetime cost (LTC) analysis in the presence of Vietnam’s market economy. The LTC is made up of the initial capital expenditure (ICE) and the overall operating cost (OPC), which includes the expense incurred for maintenance and electricity energy loss. An analytical formulation of ICE related to conductor size and system voltage is established based on information from recently built overhead transmission lines and a regression-based method. The electricity energy loss is computed based on equivalent hours of maximum power loss contingent upon equivalent hours of maximum power usage throughout an analytical expression obtained on the basis of the regression technique from load consumption patterns in the past. Finally, the feasibility and efficacy of the proposed economic current density values are validated by practical case studies of overhead transmission lines in Vietnam. The deployment of the suggested strategy demonstrates a decrease in lifetime cost ranging from approximately 5% to around 20% in comparison to the methodology prescribed by the existing Vietnam standard.

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Section: Introductionmentioning

confidence: 99%

Deployment of Lifetime Cost Analysis to Reassess Economic Current Density in the Presence of Vietnam’s Market Economy

Nang-Van Pham

2024

jes

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“…Life cycle cost (LCC) pertains to the comprehensive expenditure incurred by a system or equipment over its entire life cycle, encompassing the direct, indirect, and recurring costs associated with its design, research and development, manufacturing, utilization, maintenance, and support [12]. This encompasses all one-time and related expenses until the eventual decommissioning of the system or equipment.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Cost Estimation and Analysis of Transformers Based on Failure Rate

Zhao,

Gui,

Chen

et al. 2024

Applied Sciences

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Transformers, as the hub equipment of the power system, are highly valued by engineering and scientific researchers in production practice and scientific research. The goal of transformer research is to ensure the safe operation of transformers while considering their economic benefits, arrange transformer inspections reasonably to reduce inspection costs, and save labor and maintenance costs reasonably. This study first provides a brief analysis of the life cycle cost of transformers. The life cycle of transformers is divided into initial cost, operating cost, maintenance cost, fault cost, and scrap cost. Based on the distribution of transformer failure rate, the corresponding life cycle cost of transformers is calculated. Taking 110 kV transformers as an example, the differences in the impact of key factors on the full life cycle cost are analyzed to achieve high quality, high reliability, economically optimal equipment procurement.

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“…Primarily, it was reported that most of the electrical infrastructures were constructed in the 1950s and 1960s, which means that they have already been in service for about 60 years [4][5][6][7]. There are issues associated with this, as most of the old instruments have already exceeded their life cycles or are nearing the end of their lives [8][9][10][11][12][13]. Hence, current transmission line systems are loaded with a sizeable number of ageing assets.…”

Section: Introductionmentioning

confidence: 99%

Increasing Power Transfer Capability of Transmission Lines Using the Quasi-Dynamic Operation and Monitoring System

Shokouhandeh¹,

Kamarposhti²,

Lorenzini³

et al. 2022

MMEP

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One of the key methods for reducing the possible interruptions and the pressures imposed on the operator is to employ the hidden capacity of the transmission lines. The basis of selecting the line capacity is the ability of the operator to preserve the allowed distance between the transmission line and the ground, trees, vehicles, and other obstacles that are directly under the line. One of the methods that increase the capacity of the employed line is the line monitoring equipment and using the dynamic capacity. Although the dynamic capacity method costs less than other options, it might be costly and laborsome. Thus, there should be a tradeoff between the dynamic and static capacity, known as the quasi-dynamic capacity. This term indicates that the dynamic capacity is used in studies for making logical decisions for changing the static capacity or operation of the operator. In many cases, this technology can be implemented temporarily and then removed or displaced for other applications. The purpose of this study is to present a quasi-dynamic method for determining and operating the line capacity to reduce the costs required to determine the complete dynamic capacity and improve the assumptions used in determining the static capacity.

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Life cycle cost analysis of transmission and distribution systems

Cited by 20 publications

References 0 publications

Deployment of Lifetime Cost Analysis to Reassess Economic Current Density in the Presence of Vietnam’s Market Economy

Deployment of Lifetime Cost Analysis to Reassess Economic Current Density in the Presence of Vietnam’s Market Economy

Life Cycle Cost Estimation and Analysis of Transformers Based on Failure Rate

Increasing Power Transfer Capability of Transmission Lines Using the Quasi-Dynamic Operation and Monitoring System

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