A new approach to increase the integration of RES in a mediterranean island by using HTLS conductors

Favuzza, Salvatore; Ippolito, Mariano Giuseppe; Massaro, Fabio; Paternò, Giuseppe M.; Puccio, Andrea; Filippone, Giovanni

doi:10.1109/powereng.2015.7266332

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…Research has covered the performance [42]- [45], durability [32], [46], [47], economic cost [24], [48]- [50], ways to increase the ampacity line [51], [52] and material properties of HTLS conductors [1], [53], [54]. An HTLS conductors is not only able to address the vibration and galloping issues but can also increase the current carrying capacity of transmission lines to meet higher electricity demand.…”

Section: B Modified Conductorsmentioning

confidence: 99%

Review of Thermal Stress and Condition Monitoring Technologies for Overhead Transmission Lines: Issues and Challenges

et al. 2020

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The overhead transmission line system is one of the methods of transmitting electrical energy at a high voltage from one point to another, especially over long distances. The demand for electrical energy is increasing due to the increase in the world population, the evolution of transport technology, and economic expansion, thereby resulting in overloading to the overhead line (OHL) system. In building new infrastructure for transmission lines, several issues need to be addressed. Thus, optimizing existing power by increasing the ampacity of power line is a practical solution to meet energy demand issues. During long-term operation, the temperature of OHL conductors may increase beyond their rated temperature, which is typically 75 °C for conventional conductors such as aluminum-conductor steel-reinforced cable. This condition is defined as thermal stress, which results in lower sag vertical clearance, tensile loss, elongation and creep, and reduced life span of the conductors. This condition must be avoided to ensure that the line is not permanently elongated, which can disrupt the vertical ground clearance, and to expand the conductor's life. Other factors such as lightning, wildfire, aging, and degradation of the conductor can also cause thermal stress on the conductors and have thermal effects on the conductor's performance. Therefore, unwanted thermal stress needs to be examined and identified by monitoring the thermal effect and behavior of the lines. This paper presents the state of the art in monitoring technologies that can be used to identify thermal stress on OHL conductors, including the issues and challenges in monitoring. At the end of this paper, a few suggestions are included to address the occurrence and assessment of thermal stress in lines. Ultimately, this work may provide complete information to researchers and maintenance engineers to enable them to make better decisions on condition monitoring, operation, and maintenance of the system. INDEX TERMS Overhead transmission line, thermal rating, conductor temperature, thermal stress effect, conditioning monitoring.

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Section: B Modified Conductorsmentioning

confidence: 99%

Review of Thermal Stress and Condition Monitoring Technologies for Overhead Transmission Lines: Issues and Challenges

et al. 2020

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“…Reconductoring existing transmission lines with HTLS conductors allow reducing operating costs, because they can offer improved transmission capacity and lower transmission losses, especially when operating below the full capacity [44]. The reduced costs of reconductoring with HTLS conductors are mainly because this possibility does not require constructing new structures [78], thus avoiding new right of way requirements [103], long construction periods and reducing manpower related costs [44]. However, largescale application of HTLS conductors may be hindered because of relatively higher costs of such conductors compared to the conventional ACSR alternative [104].…”

Section: Cost Analysesmentioning

confidence: 99%

“…TSOs often must dispatch the energy produced by renewable energy sources through the existing overhead power lines in order to optimize transmission capacity [24]. The use of HTLS conductors allows increasing flexibility in power operation [103], and along with other strategies applied by the TSO, it may contribute to reduce the electricity's zonal price, reduce the number of constraints of the electricity market, while increasing power system resilience in front of disturbances.…”

Section: Cost Analysesmentioning

confidence: 99%

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

Riba

Bogarra

Gómez-Pau

et al. 2020

Renewable and Sustainable Energy Reviews

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“…High Temperature Low Sag (HTLS) conductors are used for the uprating of overhead lines due to their lower coefficient of thermal expansion CTE and higher maximum allowable temperature values [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

Field validation of gap-type overhead conductor creep

Fernández

Albizu

Bedialauneta

et al. 2019

International Journal of Electrical Power & Energy Systems

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A new approach to increase the integration of RES in a mediterranean island by using HTLS conductors

Cited by 9 publications

References 10 publications

Review of Thermal Stress and Condition Monitoring Technologies for Overhead Transmission Lines: Issues and Challenges

Review of Thermal Stress and Condition Monitoring Technologies for Overhead Transmission Lines: Issues and Challenges

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

Field validation of gap-type overhead conductor creep

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