Uprating of transmission lines by means of HTLS conductors for a sustainable growth: Challenges, opportunities, and research needs

Riba, Jordi-Roger; Bogarra, Santiago; Gómez-Pau, Álvaro; Moreno-Eguilaz, Manuel

doi:10.1016/j.rser.2020.110334

Cited by 21 publications

(13 citation statements)

References 79 publications

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“…The interconnected lines that carry this transmission are known as transmission lines [5]. However, electric power distribution and transmission lines have always been challenging because of their complex nature, the costs involved in their erection, and the cost of maintenance, and have been the focus of many researchers [6][7][8]. Mainly, literature on power distribution networks can be segregated into three dimensions; first, most of the researchers focused on the primary networks only [9][10][11][12][13][14][15][16], few focused on secondary [17], and only a few researchers addressed both the primary and secondary networks [18].…”

Section: Literature Reviewmentioning

confidence: 99%

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Power Distribution Network Expansion and Location Optimization of Additional Facilities: A Case Study

et al. 2021

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Planning the power distribution network is critical and challenging; the main challenges include the multiple costs involved, selecting the appropriate locations of different nodes of the network at minimal cost, and minimizing the cost of energy loss for both the primary and secondary networks. Literature on the power distribution network presents different approaches, however, lacks to address the several issues of the complex power distribution networks and many aspects are yet to be explored; for example, the uncertain cost of energy loss. This study intends to address the gaps in the literature by proposing a four-phased approach. In doing so, first, an integer linear programming model is formulated with the objective of cost minimization. Secondly, fuzzy variables are used to tackle the parameters with uncertainty; cost of energy loss. In the third phase, a fine-tuned genetic algorithm (FT-GA) that uses the Taguchi Orthogonal Array is introduced to solve the mathematical model. It is worth mentioning that during the design of the experiment, the input parameters are crossover rate, elite count, and population size. In the last phase, a pragmatic approach is adopted and a Pakistan-based case study is used to validate the proposed model and its implication in real-life scenarios. The results exhibit that our proposed approach outperforms traditional methods like the genetic algorithm (GA) and inter-point methods in terms of fitness function value, number of generations, and computational time. This research contributes at both theoretical and managerial levels and may help decision-makers to design networks more efficiently and cost-effectively in Pakistan, Asia, and beyond.

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Section: Literature Reviewmentioning

confidence: 99%

“…M 2 = (MC l g l h gh + ELC l g l h gh ) × z l g l h gh (6) Modifying Equation ( 6), the value of the cost of energy loss can be computed using Equation (7).…”

Section: Formulation Of Objective Function and Constraintsmentioning

confidence: 99%

Power Distribution Network Expansion and Location Optimization of Additional Facilities: A Case Study

et al. 2021

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“…Hence, the increased utilisation of existing transmission line systems has been identified as a possible alternative to accommodate the extraordinary demand for electricity. Several studies have been carried out on different methods of uprating, including increased conductor rating, increased conductor temperature, increased thermal rating by active line rating system, probabilistic rating, high surge impedance, and increased electrical clearances [35][36][37][38][39][40][41][42][43][44]. The studies cover different techniques such as conductor replacement, conductor tension, line thermal, conductors bundling, and increased conductor attachment height [18,[45][46][47][48][49][50][51].…”

Section: Voltage Uprating Issues and Challenges In Malaysiamentioning

confidence: 99%

Issues and Challenges in Voltage Uprating for Sustainable Power Operation: A Case Study of a 132 kV Transmission Line System in Malaysia

et al. 2021

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Ageing grid infrastructure is a critical issue that is currently faced by electrical utilities worldwide, resulting in crucial decisions that must be made for the replacement, repair, or refurbishment of assets under constrained budgetary conditions, as well as other factors. As one of the fastest-developing countries globally, Malaysia is steadily growing in terms of its cumulative population, large industries, and advanced transportation sector, leading to an increasing electricity demand and, consequently, putting stress on electric utility providers to meet these tremendous demands. Significant concerns in the new development of transmission in Malaysia are the environmental issues, which involve exploration in gazetted areas and forest reserves. This paper describes the issues and challenges in developing a new transmission line system in Malaysia. In recent years, uprating existing transmission line systems has been one of the best asset management decisions for electric utility operators in order to meet such a demand for capacity. This paper assesses the technical issues and conventional methods of uprating the voltage of an existing transmission line system. The initial study found that the phase-to-Earth clearance does not fulfil the electrical clearance envelope. The study on the existing 132 kV transmission line system further analysed these issues and proposed an appropriate technique for uprating to a 275 kV transmission line system. Finally, the results indicate that the voltage uprating of the 132 kV transmission line system to 275 kV is able to satisfy the electrical clearance requirement envelope.

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“…The constant changes in the generation sector and growing requirements for continuity and certainty of electrical energy supply places a great strain on electric power sector with the need for further transmission network development. Various approaches, such as the use of high temperature low sag conductors, can be employed to increase the transmission VOLUME 4, 2016 capacity of the existing transmission lines [10]. However, these approaches might not provide the long-term solution to the aforementioned challenges.…”

Section: Introductionmentioning

confidence: 99%

Novel Method for Magnetic Flux Density Estimation in the Vicinity of Multi-Circuit Overhead Transmission Lines

et al. 2022

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In this paper, a novel method for the magnetic flux density estimation in the vicinity of multi-circuit overhead transmission lines is proposed. The proposed method is based on a fully connected feed-forward artificial neural network model that is trained to estimate the magnetic flux density vector components for a range of single-circuit overhead transmission lines. The proposed algorithm is able to simplify estimation process in instances when there are two or more geometrically identical circuits present in the multi-circuit overhead transmission line. In such instances, artificial neural network model is employed to estimate the magnetic flux density distribution over a considered lateral profile for only one of such circuits. The magnetic flux density estimates of the other geometrically identical circuits are derived from these results. The proposed methodology defines the resultant magnetic flux density for the multi-circuit overhead transmission line in terms of the contributions made by individual circuits. The application of the proposed magnetic flux density estimation method is demonstrated on several multicircuit configurations of overhead transmission lines. The performance of the proposed method is compared with the Biot-Savart law based method calculation results as well as with field measurement results. INDEX TERMSArtificial Neural Network (ANN), Biot-Savart (BS) law based method, Current intensity, Magnetic flux density, Multi-Circuit Overhead Transmission Lines.

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Uprating of transmission lines by means of HTLS conductors for a sustainable growth: Challenges, opportunities, and research needs

Cited by 21 publications

References 79 publications

Power Distribution Network Expansion and Location Optimization of Additional Facilities: A Case Study

Power Distribution Network Expansion and Location Optimization of Additional Facilities: A Case Study

Issues and Challenges in Voltage Uprating for Sustainable Power Operation: A Case Study of a 132 kV Transmission Line System in Malaysia

Novel Method for Magnetic Flux Density Estimation in the Vicinity of Multi-Circuit Overhead Transmission Lines

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