Power line monitoring for the analysis of overhead line rating forecasting methods

Fernández, E.; Albizu, I.; Mazón, A.J.; Etxegarai, A.; Buigues, G.; Alberdi, Rafael

doi:10.1109/powerafrica.2016.7556583

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…The savings in investment are also evident due to the reduction in the number of circuits and the use of a large number of double-chain power supply, and the reduction in investments in the linear part is complemented by savings on SR, which are much smaller for SCOHL by charging power. The increase in investment in SCOHL compared to traditional OHL significantly affects the overall efficiency due to the installation of FR (Fernandez et al 2016). The width of the…”

Section: Discussionmentioning

confidence: 99%

Estimation of the total influence of methods for increasing the line natural load

Komenda,

Volynets,

Hrytsiuk

et al. 2024

Polityka Energetyczna – Energy Policy Journal

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Studies aimed at the economically sound increase in the capacity of existing power lines and improvements in their design are relevant today. In addition to the well-known design methods of influencing the capacity of the transmission line, there are other meanings that can affect its natural capacity, which is directly related to the capacity. Therefore, the purpose of this study was to find possible methods of increasing natural power and evaluate their effectiveness in real configurations. The basis of the methodological approach applied in this study is a qualitative combination of methods of systematic analysis of ways to increase the capacity of power lines with the analytical investigation of the prospects for its impact on wave resistance to increase the natural power of the line. The conducted research determined the total influence of the analyzed factors on the in-crease in transmission capacity and identified the most optimal configuration from a technical and economic standpoint. Based on the results of the calculation of the natural capacity of the configurations, conclusions were made about the significance of the impact of each of the above factors, and the economic effect of their implementation in the integrated power system was established. Improvement of this methodology can, in the long run, serve as a tool for calculating configurations for economic and technical relevance, or serve as a foundation for further identification of factors affecting the transmission capacity of power lines.

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Section: Discussionmentioning

confidence: 99%

Estimation of the total influence of methods for increasing the line natural load

Komenda,

Volynets,

Hrytsiuk

et al. 2024

Polityka Energetyczna – Energy Policy Journal

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“…Researchers in [2][3] [4] suggested to employ line temperature sensing technologies combined with real-time weather data and a custom built routine software to enhance ratings of transmission lines and other system components in a real time. Research team working in [5] also stated that rate of conductor temperature increase exceeds that of corresponding current increase It was found that in a clear day rate of conductor temperature increase in relation to current applied through it is linear in nature, unlike during rainy days where this rate tends to develop a non-linear relationship. This relationship to the best knowledge of this document authors was not given the necessary attention in engineering literature.…”

Section: Introductionmentioning

confidence: 99%

Impact of Rain On Transmission Lines’ Ampacity: Scotland as a Case Study

Abdaelbaset

Farrag

Farokhi

2018

2018 53rd International Universities Power Engineering Conference (UPEC)

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The increase in volume of embedded generation, particularly wind farms in the United Kingdom coupled with change in nature of connected load (growing number of electric vehicles and domestic PV) will require system operators to look for ways to reduce network constraints. Increasing the current carrying capacities of transmission lines while ensuring that safety margins are not encroached will result in significant improvements to overall transmission efficiency and reduction in operational costs. It is possible to increase transmission lines transfer capacities through monitoring of conductor temperature in real time; however, there are conditions that will necessitate limitations. One of these is the effect of conductor shading (due to trees for example), another is the temperature overshoot effect (mainly relevant to new conductors running at 90° Celsius). This paper will focus on studying the cooling effect of rain on conductor ampacity. A close relationship (rain Vs conductor temperature) often ignored in studies concerned with ampacity measurements and computation. Index Terms-Ampacity of bare power lines, dynamic thermal ratings, generation dispatch, ruling span of transmission line, temperature overshoot effect and thermal time constant. I.

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“…The data measured in a pilot line are compared with the forecasted values and forecast ratio and security indicators are obtained. Some preliminary results are presented in [18][19][20], but this paper extends the rating methods and the analysis of the results.…”

Section: Introductionmentioning

confidence: 99%

Forecast ratio and security analysis of rating forecasting methods in an overhead line

Albizu

Fernández

Mazón

et al. 2017

IET Generation, Transmission & Distribution

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The actual line rating in overhead lines varies with weather conditions. When a utility defines a rating value for the operation of the line, it takes into account both the security and the forecast ratio. The defined rating is secure if it is below the actual rating. A good rating forecast ratio is obtained when the defined rating is close to the actual rating. Therefore, the aim of a line rating forecasting method is to define a rating value that is close but below the actual value. This paper shows the rating measurements carried out in a pilot overhead line and analyses the performance of several line rating forecasting methods comparing the defined values with the actual ones.

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Power line monitoring for the analysis of overhead line rating forecasting methods

Cited by 5 publications

References 5 publications

Estimation of the total influence of methods for increasing the line natural load

Estimation of the total influence of methods for increasing the line natural load

Impact of Rain On Transmission Lines’ Ampacity: Scotland as a Case Study

Forecast ratio and security analysis of rating forecasting methods in an overhead line

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