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MASTER THESIS PROJECT: “THE OH LINE SAG DEPENDENCE ON WEATHER PARAMETERS AND LINE CURRENT”
The purpose of the Master Thesis is to investigate how the size of the sag depends on these multiple measured variables. The thesis is therefore a combination of different areas, meteorology, power distribution and material behavior, and supervision from experts in these areas will be required. A multivariable analysis will be done in MATLAB.
Master Thesis project: The thesis is mainly divided into three parts as follows.
• Analyse the measured data
The measured data shall be analysed and possible correlations between the parameters identified. Obvious differences between the two OH lines shall be highlighted.
• Information compilation
The literature study shall describe the already existing calculation procedure and the used assumptions. It shall also study similar measurement projects as well as other theoretical studies in the area.
• Comparisons and recommendations
The equation for line sag dependence on several parameters identified from own measurements shall be compared with theoretical and measured results from external projects. Dependencies on line material, line area, distance between line poles as well as possible non-linear behavior of measured parameters shall be evaluated and discussed. Conclusions shall be drawn on possible drawbacks in the used measured data in terms of variability degree and interesting extreme values. Recommendations shall be given concerning:
• Required extreme parameter values to obtain sure conclusions
• Load capacity as function of all involved parameters (OH line parameters and weather parameters)
Master Thesis Report and presentation: The report shall be written in English. Presentations will be given both at Vattenfall and at the home University. Revision of the report shall be based on comments during presentations.
Student education requirements: The student shall have fulfilled all courses on a relevant University program. Suitable program could be Power Technology, Meteorology, Theoretical Physics or Physics. The student shall write and speak Swedish and English.
Time schedule: The project shall preferably be started as soon as possible but if more suitable the start can be delayed until mid January. The project prolongs during the mandatory period of 20 weeks.
Supervision: Lovisa Stenberg, Vattenfall R&D, will supervise the project. The project will be conducted in the Vattenfall R&D office in Råcksta located west from Stockholm City.
Lovisa Stenberg, Vattenfall R&D +46 8 739 6966
162 87 Stockholm
Informationen om uppsatsförslag är hämtad från Nationella Exjobb-poolen.