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Weather-based Thermal Rating of Overhead Power Transmission Lines

  • Author / Creator
    Filimonenkov, Konstantin
  • One of the ways to improve electric power transmission systems is to efficiently utilize the capacity of the existing power circuits. That can be achieved by increasing the thermal ratings of the transmission lines. In this research, weather-based rating approaches were studied. Static thermal rating (STR) strategies (probabilistic and seasonal) and a new dynamic thermal rating (DTR) approach based on numerical weather prediction (NWP) were evaluated. The results demonstrate that the DTR approach allows better line utilization compared to STR methods. It was also shown that the postprocessing technique called model output statistics (MOS) can significantly reduce errors in numerical weather simulation, improve the accuracy of the DTR system, and reduce the risks of line overheating. Efficient data management, processing, and visualization were investigated to fully utilize the potential of an advanced DTR system. Applications of the latest web-based technologies, geospatial databases, and 3D visualization techniques are presented.

  • Subjects / Keywords
  • Graduation date
    Fall 2011
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R3P70G
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.