Analysis and Implementation of Various Dynamic Line Rating Technologies
Enekanma, Kingsley (2022)
2022
Master's Programme in Electrical Engineering
Informaatioteknologian ja viestinnän tiedekunta - Faculty of Information Technology and Communication Sciences
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Hyväksymispäivämäärä
2022-10-27
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202210067452
https://urn.fi/URN:NBN:fi:tuni-202210067452
Tiivistelmä
Traditional overhead power transmission lines are designed and manufactured using worst case conditions or scenarios like high solar radiation, low/no wind speed, and high ambient temperature; and this makes them to have a fixed rating (static line rating). The fixed rating of this transmission lines can be optimized to accommodate more loads when wind at high speed cools the line by convection. The convective cooling from the atmospheric air or wind is the main factor affecting the line current carrying capacity (ampacity) which helps the line to accommodate more loads. The extra available capacity can be utilized in the power system to re-duce network congestion and minimize production curtailment of wind power system. This can be only achieved when dynamic line rating technologies are installed on the line to provide real time monitoring of the transmission line characteristics, and also calculate the ampacity of the transmission line which will be needed by the control center (system operators) to know the available allowance the system can still accommodate.
This thesis report aims to compare and analyze various Dynamic Line Rating (DLR) technologies available in the market and recommend the best based on technical aspects (measurement accuracy, performance, reliability, efficiency, ease of installation and integration) and business aspect (cost of purchase and installation). This report will also help the reader to identify the classifications, applications, benefits, and drawbacks associated with the various DLR technologies. The importance and benefit of DLR for wind power system integration will be discussed in this report and also, the challenges associated with DLR technology implementation and integration into the power system will as well be discussed.
Result showed that Power Donut had the best performance and measurement accuracy when compared to other temperature monitoring technologies, while any of the sag monitoring technologies can be installed depending on the span location, operational voltage, weather condition of the area, network design, and configuration.
This thesis report aims to compare and analyze various Dynamic Line Rating (DLR) technologies available in the market and recommend the best based on technical aspects (measurement accuracy, performance, reliability, efficiency, ease of installation and integration) and business aspect (cost of purchase and installation). This report will also help the reader to identify the classifications, applications, benefits, and drawbacks associated with the various DLR technologies. The importance and benefit of DLR for wind power system integration will be discussed in this report and also, the challenges associated with DLR technology implementation and integration into the power system will as well be discussed.
Result showed that Power Donut had the best performance and measurement accuracy when compared to other temperature monitoring technologies, while any of the sag monitoring technologies can be installed depending on the span location, operational voltage, weather condition of the area, network design, and configuration.